| Episode cast overview, first billed only: |
 | Roger Federer | - | Himself - Wimbledon Men's Singles Champion (archive footage) |
 | Marin Cilic | - | Himself - Wimbledon Men's Singles Runner-Up (archive footage) |
 | Boris Becker | - | Himself - Three-Time Wimbledon Champion |
 | Tim Henman | - | Himself - Former British Number One |
 | Pat Cash | - | Himself - 1987 Wimbledon Champion |
| Jamie Murray | - | Himself - Wimbledon Mixed Doubles Champion 2017 |
 | Martina Hingis | - | Herself (archive footage) (as Mur/Hin) |
| Henri Kontinen | - | Himself (archive footage) (as Kon/Wat) |
 | Heather Watson | - | Herself (archive footage) (as Kon/Wat) |
 | Lewis Hamilton | - | Himself - British Grand Prix Winner (archive footage) |
 | Andy Swiss | - | Himself - Correspondent |
| Aled Davies | - | Himself - F42 Discus World Champion (archive footage) |
| Callum Shinkwin | - | Himself (archive footage) (as C Shinkwin) |
| Graeme McDowell | - | Himself (archive footage) |
| James Heatly | - | Himself - Great Britain (archive footage) |
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