Suggestions by @anicepairofsmoothcri

Michael Palin

as Toby (Not William Hope) in Thomas & Friends (Hit Entertainment)

Kelly Macdonald

as Emily (NOT Jules De Jongh) in Thomas & Friends (Hit Entertainment)

Grey DeLisle

as Annie in Thomas & Friends (Hit Entertainment)

Simon Pegg

as Duck in Thomas & Friends (Hit Entertainment)

Mark Strong

as Boco in Thomas & Friends (Hit Entertainment)

Nick Frost

as Oliver in Thomas & Friends (Hit Entertainment)

Peter Capaldi

as Duncan in Thomas & Friends (Hit Entertainment)

Tara Strong

as Clarabel in Thomas & Friends (Hit Entertainment)

Tara Strong

as Daisy in Thomas & Friends (Hit Entertainment)

Tracy-Ann Oberman

as Daisy in Thomas & Friends (Hit Entertainment)

Ariana Grande

as Rosie in Thomas & Friends (Hit Entertainment)

David Tennant

as Donald in Thomas & Friends (Hit Entertainment)

Michael Caine

as Stepney in Thomas & Friends (Hit Entertainment)

Michael Palin

as Toby in Thomas & Friends (Hit Entertainment)

Eric Idle

as James in Thomas & Friends (Hit Entertainment)

Kelly Macdonald

as Emily in Thomas & Friends (Hit Entertainment)

Ian McKellen

as Duke in Thomas & Friends (Hit Entertainment)

Edgar Wright

as Director in Thomas & Friends (Hit Entertainment)

April Stewart

as Rebecca in Thomas & Friends (Hit Entertainment)

Cameron Diaz

as Rebecca in Thomas & Friends (Hit Entertainment)