Featuring interviews from members of the casting, production design, costume design, and creature effects teams, follow the behind-the-scenes journey of bringing the Harry Potter books to the small screen. Find out how the new Golden Trio were found, and celebrate the commitment to detail of the artists, craftspeople, and technicians who have come together to bring the wizarding world to life.
| Actor | Role |
|---|---|
 Nick FrostSelf - Narrator (voice) | Self - Narrator (voice) |
 Dominic McLaughlinSelf | Self |
 Arabella StantonSelf | Self |
 Alastair StoutSelf | Self |
 John LithgowSelf | Self |
 Janet McTeerSelf | Self |
 Paapa EssieduSelf | Self |
 Mark MylodSelf | Self |
 Francesca GardinerSelf | Self |
 Mara LePere-SchloopSelf | Self |
 Holly WaddingtonSelf | Self |
 Adriano GoldmanSelf | Self |
 Christophe NuyensSelf | Self |
 Lucy BevanSelf | Self |
| EEmily BrockmannSelf | Self |
| JJohn NolanSelf | Self |
| CCate HallSelf | Self |
| DDominic SikkingSelf | Self |
| JJulian WalkerSelf | Self |
| LLaura SindallSelf | Self |
| SSophie RechtbergerSelf | Self |
| CCharlotte CouchSelf | Self |
| BBasia KuznarSelf | Self |
| JJason AireySelf | Self |
 Lox PrattSelf (uncredited) | Self (uncredited) |
 Eire FarrellSelf (uncredited) | Self (uncredited) |
 Serrana Su-Ling BlissSelf (uncredited) | Self (uncredited) |
 Cornelius BrandrethSelf (uncredited) | Self (uncredited) |
 James DowellSelf (uncredited) | Self (uncredited) |
| GGabriel HarlandSelf (uncredited) | Self (uncredited) |