Railway Adventures with Thomas & His Friends

Railway Adventures with Thomas & His Friends is an upcoming British-American animated TV series created by Viacom.

UK
Sam Brown as Thomas, the no. 1 blue second series LBSCR E2 tank engine who can be cheeky but kind and helpful.

Hayden Hunter as Edward, the no. 2 blue Furness Railway K2 tender engine who is wise and eager to help his friends out.

Stephen Mangan as Henry, the no. 3 green LMS Black Five tender engine who is grumpy and timid, but he can be brave.

Peter Dickson as Gordon, the no. 4 blue GNR A1 Pacific tender engine who is often rude and ill-tempered to his friends.

Simon Cowell as James, the no. 5 red experimental version of a L&YR Class 28 tender engine who likes to admire his shiny red paintwork and think of himself as a really splendid engine.

Samuel Woodward as Percy, the no. 6 green Avonside Saddle Tank tank engine who is Thomas' cheekier best friend and is always ready to prank his friends.

Ben Small as Toby, the no. 7 brown GER Class C53 steam tram engine who is the oldest engine in the Steam Team.

Jimmy Hibbert as Duck, the no. 5741 green GWR 5700 Class tank engine who is a fusspot at times but helpful.

Michael Adamthwaite as Donald and Douglas, respectively the no. 9 and no. 10 blue CR Class 812 tender engines who are the Scottish Twins of the Island of Sodor and enjoy nothing more than to work and help their friends.

Simon Greenall as Oliver, the no. 1436 green GWR 1400 class tank engine who is sometimes boastful and pompous but cheerful and chirpy.

Jim Broadbent as the Fat Controller, the director of the Island of Sodor

US
Huck Milner as Thomas, the no. 1 blue second series LBSCR E2 tank engine who can be cheeky but kind and helpful.

Michael Wallis as Edward, the no. 2 blue Furness Railway K2 tender engine who is wise and eager to help his friends out.

Ellen DeGeneres as Henry, the no. 3 green LMS Black Five tender engine who is grumpy and timid, but she can be brave.

Craig T. Nelson as Gordon, the no. 4 blue GNR A1 Pacific tender engine who is often rude and ill-tempered to his friends.

Justine Ezarik as James, the no. 5 red experimental version of a L&YR Class 28 tender engine who likes to admire her shiny red paintwork and think of herself as a really splendid engine.

Hayden Rolence as Percy, the no. 6 green Avonside Saddle Tank tank engine who is Thomas' cheekier best friend and is always ready to prank his friends.

Kevin Brueck as Toby, the no. 7 brown GER Class C53 steam tram engine who is the oldest engine in the Steam Team.

Owen Wilson as Duck, the no. 5741 green GWR 5700 Class tank engine who is a fusspot at times but helpful.

Michael Adamthwaite as Donald and Douglas, respectively the no. 9 and no. 10 blue CR Class 812 tender engines who are the Scottish Twins of the Island of Sodor and enjoy nothing more than to work and help their friends.

Alexander Gould as Oliver, the no. 1436 green GWR 1400 class tank engine who is sometimes boastful and pompous but cheerful and chirpy.

Brad Garrett as Sir Topham Hatt, the director of the Island of Sodor.

Trivia

 * In the US dub, Henry and James are female.
 * In the Spanish dub, Henry, James, Percy, and Oliver are female and are respectively called Harriet, Jasmine, Patricia, and Olivia.