Chad Michael Murray was the first actor to be cast in the show, though creator Mark Schwahn originally wanted him to play Nathan, having seen him in bad guy roles before. But Murray himself wanted to play Lucas, because he felt that the character had a back story he could connect more to, since he also experienced being abandoned as a child.

James Lafferty is the only regular cast member to be the actual teenager playing a high school student even though he's already 20 years old by the end of season two.

Peyton's Internet address punkndisorderly.com leads to an actual page featuring her art and the web cam.

Moira Kelly was pregnant during the first season, so Karen was sent to chef school in Italy.

When talking about casting the role of Peyton, 'Mark Schwann (I)' said: "They asked why I wanted Hilarie Burton, and my answer was, 'She has a lot of pain in her eyes. And I want that pain in Peyton's eyes'. We always laugh about it, because Hilarie is like, 'It's a good thing a lot of crummy things happen to me in my life'."

Cast Members Chad Michael Murray (Lucas), Bethany Joy Lenz (Haley), and 'James Lafferty' (Nathan) each directed an episode for the first time during season 6.

At the end of the series, Bethany Joy Lenz took home the Julius Ceaser book that appeared in the first episode

Since the start of One Tree Hill, James Lafferty and the cast and crew of the show host a basketball game toward the end of every season to benefit different charities. Along with these charity games, One Tree Hill has also hosted the Hurricane Katrina Relief Softball Game and, toward the end of the second season, the show's members also hosted a charity football game. At all charity events, most of the cast and crew get split into two teams and play. The proceeds of each game have gone to different charities.

The often mentioned ravenshoops.com is an actual Internet page created by Mouth of the fictional Ravens-team of Tree Hill High School.

The Tree Hill High gym, where the Raven's games were played, is the gym that Michael Jordan played at when he was in school

Episodes are all names of songs/albums titles. Artists whose album name/song title features as an episode title are sometimes seen in the soundtrack, but not always.

Music was such a huge part of the show that the fictional club Tric was written into the show in Season 2 so the writers could feature more bands and artists.

One Tree Hill day is on September 23rd, the day that the show first aired on

Chad Michael Murray (Lucas Scott) and Sophia Bush (Brooke Davis) met on the set of One Tree Hill and married on April 16, 2005. They subsequently divorced.

The name "One Tree Hill" was taken from a U2 song of the same name. The creator, Mark Schwahn, was listening to 'U2''s 'The Joshua Tree' album. When the song "One Tree Hill" came on, he decided to make it the title. (The song itself is named after One Tree Hill, a volcanic cone in the city of Auckland, New Zealand's largest city. The tree was removed in 2000 after being attacked in 1994, however, a plaque exists there and the location is still known as One Tree Hill, or more recently, its Maori name: Maungakiekie.)

Sophia Bush read for the role of Brooke three times. The first time she was told she didn't look sexy enough, the second time she was told she looked too sexy, and the third time she was offered the part.

November 13th, 2017 - It was announced via Hilarie Burton's twitter account that she left the show after six seasons because of sexual and emotional abuse from the series creator Mark Schwahn. It was also revealed that's why she never came back for the final season.

Brooke Davis was named after Sophia Bush's college roommate.

In 2014 there was a One Tree Hill reunion in Paris. Most main characters went except Chad Michael Murray, who had to cancel last minute due to filming schedules

Moira Kelly played Karen, she was pregnant after the pilot was shot, but Mark Schwahn didn't want to write the pregnancy into the show at the time, so they used an array of props to hide her belly.

James Lafferty took the Raven Jersey he wore in the pilot and the NS23 shoes from the set.

In the first season James Lafferty's character, Nathan, is often shown with his left nipple pierced. He doesn't actually have the piercing, they glued it on when he was shirtless in a scene.

When Jamie was first written into the show, a lot of his scenes were dictated by what Jackson Brundage wanted to do. He would tell Mark Schwahn he wanted to eat ice cream, and in nearly every scene, he'd be eating ice cream. Then, he'd want to play with Antwon Tanner, who played Antwon "Skills" Taylor, so Schwahn wrote storylines for them.

Lisa Goldstein Kirsch (Milicent) was only supposed to be in one episode. However, she ended up coming back and eventually becoming part on the main cast from season six and on

Chad Michael Murray and Hillarie Burton both guest starred in the 100th episode of Dawson's Creek. Murray's character was hitting on Burton.

Bethany Joy Lenz and Sophia Bush appear in more episodes than any other cast member. Each appears in 186 episodes.

Haley James Scott's father is name is "Jimmy" which is short for James, presumably making her father James James.

Was one of a few shows in television history to jump the story's time line into the future. They jumped 4 1/2 years into the future between seasons 4 and 5. A couple of other shows to do this include Alias (2001), which jumped ahead two years in the future at the end of its second season and Wonder Woman (1975), which jumped from the 1940s to the 1970s after the first season.

The only actors appeared in both the pilot episode and the finale episode: James Lafferty, Bethany Joy Lenz, Lee Norris and Antwon Tanner.

James Lafferty (Nathan Scott) and Shantel VanSanten (Quinn James) are actually the exact same age, both being born on July 25th, 1985.

The Rivercourt, which was used througout the entire series, was taken down after One Tree Hill ended

The character of Brooke Davis is not in the pilot and was introduced in the second episode.

On May 12, 2009, it was confirmed that Chad Michael Murray and Hilarie Burton would not be returning for the seventh season. This will make James Lafferty, Sophia Bush, Bethany Joy Galeotti and Paul Johansson the only four original cast members to be left on the show.

Although Haley is the youngest child in her family, both girls who were cast as her sisters are younger than Bethany Joy Lenz in real life. Lindsey McKeon (Taylor) is nearly a year younger and Shantel VanSanten (Quinn) is over four years younger.

Haley is not shown driving a car until season 5, but has her drivers license in high school.

Sophia Bush appears in every episode except the pilot episode.

Hilarie Burton, like Peyton, was a cheerleader at her high school.

Haley's children have the same first names as her parents

During the 3rd season, the characters of Ellie (Sheryl Lee) and Peyton (Hilarie Burton) worked together on a compilation CD called "Friends with Benefit" to benefit the National Breast Cancer Foundation. That CD was actually really released as a tie-in album, with a portion of its proceeds going directly to the National Breast Cancer Foundation to assist in their efforts to promote early detection awareness among young women.

The show was originally set in Illinois, but The WB asked Mark Schwahn to set it in a warmer climate, which is how the show ended up taking place in North Carolina.

There is a book with the same title as Lucas's novel, An Unkindness of Ravens, that was published in the mid-'80s.

James Lafferty's younger brother Stuart Lafferty is featured in episode 2x19 "I'm Wide Awake, It's Morning"

Antwon Tanner who plays Antwon "Skills" Taylor was not aware Lucas and Nathan were brothers until the pilot aired.

Mark Schwahn was inspired to write the school-shooting storyline after hearing someone talk about Columbine and whispering the name. He felt someone should "say something loudly" about the tragedy.

In season 1 episode 19 when Dan is looking through his deposit box for his pictures of Lucas they show an actual photo from his childhood. He is from Buffalo NY he lived in the town of Clarence. The last picture shown is of Chad Michael Murry in his Clarence School football jersey.

A normal day at the set starts at 6.30 in the morning.

At the end of episode 22 season 8 they show Jamie wearing a gray Keith Scott car shop sweatshirt bouncing a basketball down the bridge, like Lucas Scott did in the very first episode and in the theme song

After the third season, the show was picked up by The CW because The WB merged with UPN to form The CW.

Mark Schwahn created Peyton's infamous album wall in her bedroom because he saw a wall of old movie posters in a theater and thought it looked cool.

Bethany Joy Lenz wasn't originally cast as Lucas' best friend, instead Lucas had a different best friend who played a character named Reagan

Sophia Bush landed the role of Brooke Davis after the pilot was filmed and the series was green-lit.

The characters' IM names: Lindsey Strauss (Lindsey), Scott23 (Nathan), BDavis (Brooke), Marv (Mouth), JunkYrdDog (Junk), Fergielicious (Fergie), BigFtHunterHJS (Haley), and Lucas Scott (Lucas).

Viewers by the Neilsen system: season 1 - 3.5 million viewers season 2 - 4.3 million viewers season 3 - 2.8 million viewers season 4 - 2.9 million viewers season 5 - 2.91 million viewers

Lucas Scott lives at 1829 Barnette Drive, Tree Hill, NC, 01982.

Quentin is actually 5 years older than Chad Michael Murray, who plays his high school basketball coach.

Both Craig Sheffer (Keith) and Moira Kelly (Karen) have previously worked with Sheryl Lee (Ellie). Lee and Sheffer played a married couple in Bliss (1997). While Lee and Kelly played best friends in high school in Twin Peaks: Fire Walk with Me (1992).

Daniella Alonso (Anna), Austin Nichols (Julian Baker), and Jana Kramer (Alex Dupre) all played roles in the Friday Night Lights (2006-2011)

Peyton's (season 3) dad, Larry, played Lucas' dad in "A Cinderella Story".

Actress Danneel Harris (Rachel Gatina) is married to actor Jensen Ackles who plays Dean Winchester in the CW show Supernatural(2005).

Kate Voegele who plays Mia was to appear in 5 episodes but became a major recurring character until season 8.

Lisa Goldstein Kirsch wore her actual glasses when playing Millie.

Brooke is the only main character who doesn't have at least one parent introduced in the high school years. All other cast members have all their parents introduced in high school other than Peyton's adopted mother, who passed away prior to the series, and Peyton's birth father, who she meets after opening her own record label.

The name of Peyton's label is Red Bedroom Records.

Bethany Joy Lenz was in an episode of the WB Series Charmed as Lady Julia. Her name in the credits was Joie Lenz.

In the Pilot episode, Haley (Bethany Joy Lenz) mentions that she found something for Lucas (Chad Michael Murray), but not in a "Joey loves Dawson" kind of way. This refers to the show Dawson's Creek, in which Murray plays Charlie Todd.

The court where the Tree Hill basketball games were shot is the same one Michael Jordan played on when he was in school.

Before starring in One Tree Hill, Chad Michael Murray (Lucas) and Hilarie Burton (Peyton) briefly appeared together in one episode of Dawson's Creek.

In France, the show is called "Les Frères Scott" (The Scott Brothers) even though Lucas isn't featured in the last seasons.

James Van Der Beek who guest starred in a few episodes was nor only reunited with his former Dawson's creek co-star Chad Michael Murray but also played a producer in Dawson's Creek his character is an aspiring director/producer

Despite being a star of the series, Sophia Bush was not in the pilot episode.

Jana Kramer and Austin Nichols were both in Friday Night Lights before coming onto One Tree Hill

The river court was torn down after the show ended. It resided next to the USS North Carolina

Cast members James Lafferty (Nathan Scott) and Shantel VanSanten (Quinn James) were born on the same day.

No one in the entire cast of One Tree Hill has been in every single episode.

No cast member was present in each episode.

Matt Barr (Psycho Derrick) was also in Friday Night Lights along with Alex, Julian and Anna

Craig Sheffer plays a character called Keith who works as a mechanic in a garage and in a film called Some Kind Of Womderful Eric Stolz plays a character called Keith who works as a mechanic in a garage and Craig Sheffer was in Some Kind Of Wonderful.

Peyton, Brooke, and Haley all have children named after their maiden name: Sawyer, Davis, and James, respectively.

Character's full names: Lucas Eugene Scott, Nathan Royal Scott, Peyton Elizabeth Sawyer, Brooke Penelope Davis, Haley Bob James, Daniel Robert Scott, James Lucas Scott, Bevin Evan Mirskey, Lindsey Evelyn Strauss, Rachel Virginia Gattina, Marvin Leonardo McFadden, Sawyer Brooke Scott, Lydia Bob Scott.

After no theme song the entire fifth season, Gavin DeGraw does a cameo on the season finale and sings the theme song in the first scene, at the piano with Jamie.

The show was originally going to be made as a TV movie with the title "Ravens". It was only when the network decided that there was enough good ideas in the concept to turn it into a complete series that the title was changed to "One Tree Hill". Later in the show Lucas writes a book called "An Unkindness of Ravens" that was going to be made into a movie. This movie idea was also cancelled and at the end of the series Julian was about to make "An Unkindness of Ravens" into a tv show

Jackson Brundage is the only cast member to become a regular cast member without having first appeared on the show as a guest star. He came in as a regular cast member in season 5 as Jamie, Nathan and Haley's son.

Some plot lines on the show have gone on to reality. -Season 2: Haley goes on tour with Chris Keller and the Wreckers; the actual actors/singers went on tour, selling out concerts throughout the United States. -Season 3: Peyton and Ellie host a concert and record a soundtrack to benefit the Breast Cancer Foundation. The soundtrack was recorded and released and part of the proceeds from the sales of the soundtrack went to the National Breast Cancer Association. -Season 5: Mia goes on tour after recording her first album with Peyton. Once that episode aired, Kate Voegele (Mia) went on tour with Hanson. -Season 5: Peyton tells Mia that she arranged for her to sing at a concert sponsored by Starburst. Kate Voegele (Mia) sang at the "CW and Starburst present Kate Voegele in Concert at Six Flags".

In the episode where Lucas tells Brooke about the movie she says that girls on the CW channel are hot, One Tree Hill is on the CW.

Lucas Scott's senior yearbook goal was to "write the next great American novel and to find Bigfoot before Haley"

Sophia Bush appeared in every episode except the pilot. James Lafferty had a little break in the 9th season, because of Nathan's basketball career and later his kidnapping

Both Dan and Keith Scott made their final appearance in the 11th episode of the 9th season, titled "Danny Boy". Both were also killed by a gunshot wound when they were trying to save someone (Keith was shot by Dan while trying to save Jimmy Edwards and Dan was shot by Dimitri while saving Nathan Scott)

Sophia Bush has appeared in all but one episode which was the pilot; she was cast after the series was greenlit and filming continued.

Haley, Brooke and Peyton all name their children after their last names; for example - James Lucas Scott, Sawyer Brooke Scott, Davis Baker.

All three of the main female characters name their first child after their maiden names; Haley names her son James, Peyton names her daughter Sawyer, and Brooke names one of her twins Davis

Lucas and Lindsey have the same initials Lucas Eugene Scott & Lindsey Evelyn Strauss

Almost every main character has had a near death experience. Lucas in season 1 is involved in a car accident and is hospitalized. Dan survived a heart attack. In season 2 after Haley leaves Nathan, Nathan wrecks his uncles race car and is hospitalized. At the end of season 2 beginning of season 3 Dans dealership is set on fire with him inside. Lucas pulls him out but he is unconscious with really bad burns. In season 4, Haley pushes Nathan out of the way and is hit by a car in the process. Rachel and Cooper are involved in a car accident that sends their limo over a bride and they are trapped under water for several minutes until Nathan saves them. Brooke and Peyton are attacked and tortured by psycho Derek. In season 6, Peyton almost dies when she goes into labor, after several days in a coma she finally wakes up. In season 7, Alex try's to kill herself by slitting her wrist. In the season finale of season 7, Quinn and clay are shot and in comas for several days. In season 8 during A really bad rainstorm Jamie and Brooke get trapped in a car in the river. Julian gets Jamie out but Brooke gets trapped under water and Julian has to resuscitate her. On the same night, Katie comes back into tree hill and attacks Quinn. The only characters to not survive their near death experiences all involved bullet wounds: Keith was shot by Dan in season 3 and died. Jimmy Shot himself and died. Nanny Carrie is shot by Dan after she kidnaps him and try's to kill Haley and Jamie. Quentin was shot by Xavier in season 6 and died. Dan was shot rescuing Nathan in season 9 and died. The only characters to not die by a gun are Lydia and Ellie. They both died from cancer.

Both Scott brothers, Dan and Keith were shot doing the series. Keith in season 3 and Dan in season 9, 2 episodes before the show ended.

Season 1 ep 17. Whitey said the rooms are assigned in alphabetical order. Scott and Scott. But in a scene or two later. Brooke and Peyton are roommates. Brooke's last name is Davis and Peyton's last name is Sawyer.