Suggestions by @davidrussell

Ben Small

as Thomas The Tank Engine in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Percy The Small Engine in Thomas The Tank Engine and Malory Towers

Keith Wickham

as James The Red Engine in Thomas The Tank Engine and Malory Towers

Jim Carter

as Sir Derek Topham Hatt (The Fat Controller/Director) in Thomas The Tank Engine and Malory Towers

Saskia Kemkers

as Emily in Thomas The Tank Engine and Malory Towers

Natasha Raphael

as Irene Edwards in Thomas The Tank Engine and Malory Towers

Imogen Lamb

as Mary-Lou Linnet in Thomas The Tank Engine and Malory Towers

Twinkle Jaiswal

as Katherine in Thomas The Tank Engine and Malory Towers

Simon Fisher-Becker

as Sir Derek Topham Hatt (The Fat Controller/Director) in Thomas The Tank Engine and Malory Towers

John Goodman

as Sir Derek Topham Hatt (The Fat Controller/Director) in Thomas The Tank Engine and Malory Towers

Hugh Bonneville

as Sir Derek Topham Hatt (The Fat Controller/Director) in Thomas The Tank Engine and Malory Towers

Zoey Siewert

as Alicia Johns in Thomas The Tank Engine and Malory Towers

Danya Griver

as Gwendoline Mary Lacey in Thomas The Tank Engine and Malory Towers

Ella Bright

as Darrell Rivers in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Bertie the Bus in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Skarloey The Old Faithful Engine in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Gordon The Big engine in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Henry The Green Engine in Thomas The Tank Engine and Malory Towers

Keith Wickham

as Edward The Blue Engine in Thomas The Tank Engine and Malory Towers

Nigel Pilkington

as Percy The Small Engine in Thomas The Tank Engine and Malory Towers