The New Adventures of Thomas & Friends

The New Adventures of Thomas & Friends is an upcoming British-American computer-animated children's television series created by Britt Allcroft, Andrew Brenner and Ian McCue, based on the British book series The Railway Series by Rev. W. Awdry, as well as the famous long-running original series Thomas & Friends by Britt Allcroft, that ran from 1984 to 2021. It will be produced by HIT Entertainment and Mattel Television, with Mainframe Studios handling the CGI animation. The series will serve being a continuation of the original series.

Narrator:

 * Pierce Brosnan as The Narrator (both UK and US)

Main Characters:

 * Thomas (voiced by Tom Holland) – A friendly blue tank engine who runs his own branch line.
 * Edward (voiced by Toby Jones) – A blue mixed-traffic tender engine.
 * Henry (voiced by Derek Jacobi) – A green mixed-traffic tender engine.
 * Gordon (voiced by Alexander Armstrong) – A big blue express engine.
 * James (voiced by Rob Rackstraw) – A red mixed-traffic tender engine.
 * Percy (voiced by Emma Tate) – A green saddle tank engine who loves delivering the mail and is Thomas' best friend. He is the youngest engine on the Steam Team.
 * Toby (voiced by Brian Blessed) – A brown tram engine who sometimes takes his coach Henrietta. He lives in a shed at Arlesdale End and is the only steam tram on the Steam Team.
 * Emily (voiced by Julie Wilson Nimmo) – A beautiful dark emerald green Stirling tender engine who has a big heart and acts as a sisterly figure to the other engines. She has two beautiful coaches and is best friends with Rosie, Nia, Rebecca, Lady and The Rainbow Sun.
 * Rosie (voiced by Nicola Stapleton) – A lively red tank engine (originally pink until she was repainted red) who idolises Thomas, which sometimes bothers him, but now he and Rosie are very good friends. She works as both a shunting engine and a mixed traffic engine. In this series, Rosie is now a member of the Steam Team, she is best friends with Emily, Nia, Rebecca, Lady and The Rainbow Sun.
 * Nia (voiced by Yvonne Grundy) - An orange African tank engine.
 * Rebecca (voiced by Rachael Miller) - A large yellow streamlined tender engine.
 * Lady (voiced by Britt Allcroft) – A beautiful gold and purple tank engine who serves as the guardian and main traveler of the Magic Railroad, using her magic to keep the worlds of Shining Time and Sodor alive. She is the key to producing gold dust. In this series, Lady is now a new member of the Steam Team and is very helpful when she helps Thomas and the other engines on the Island of Sodor, she is best friends with Emily, Rosie, Nia and Rebecca on Sodor and The Rainbow Sun at Shining Time.

Other Steam Engines:

 * Eddie Izzard as Duck
 * David Tennant as Donald and Douglas
 * Richard Hammond as Oliver
 * ??? and ??? as Bill and Ben
 * Mark Moraghan as Stepney
 * ??? as The Flying Scotsman
 * ??? as Spencer
 * Teresa Gallagher as Molly, Flora and Belle
 * ??? as Neville
 * Ben Small as Stanley
 * ??? as Hank
 * ??? as Arthur
 * ??? as Murdoch
 * ??? as Billy
 * Steven Kynman as Charlie
 * Eddie Redmayne as Ryan
 * Togo Igawa as Hiro
 * ??? as Bash
 * ??? as Dash
 * ??? as Ferdinand
 * Miranda Raison as Millie
 * Bob Golding as Stephen

Diesels:

 * Jeremy Irons as Diesel 10, an evil diesel engine with a hydraulic claw, who hates steam engines and always threatens to destroy them.
 * Rasmus Hardiker and Nigel Pilkington as Splatter and Dodge, two bumbling diesel twins and Diesel 10's bumbling minions.
 * Tim Curry as Diesel
 * Emma Watson as Mavis
 * ??? as Salty
 * ??? as Den
 * ??? as Dart
 * ??? as Arry and Bert
 * Keith Wickham as Norman and BoCo
 * Steven Kynman as Paxton
 * Bob Golding as Sidney
 * ??? as Daisy

Narrow Gauge Engines:

 * ??? as Skarloey
 * ??? as Rheneas
 * ??? as Sir Handel
 * ??? as Peter Sam
 * ??? as Rusty
 * ??? as Duncan
 * ??? as Fearless Freddie
 * ??? as Luke
 * ??? as Mighty and Mac
 * ??? as Duke

Sodor Construction Company Pack:

 * ??? as Jack the Front Loader
 * ??? as Alfie the Excavator
 * ??? as Oliver the Excavator
 * ??? as Isobella the Lorry
 * ??? as Kelly the Crane
 * ??? as Byron the Bulldozer
 * ??? as Ned the Steam Shovel
 * ??? as Max and Monty
 * ??? as Buster the Steamroller

Other Characters:

 * ??? as Bertie the Bus
 * ??? as Harold the Helicopter
 * ??? as Rocky the Rescue Crane
 * Keith Wickham as Harvey the Crane Engine
 * ??? as Cranky the Crane
 * ??? as Carly the Crane
 * ??? as Big Mickey the Crane
 * Teresa Gallagher as Annie and Clarabel, Elizabeth the Vintage Lorry, Caroline the Car and Madge the Snub-​nosed Lorry
 * Maggie Ollerenshaw as Henrietta
 * ??? as Trevor the Traction Engine
 * ??? as George the Steamroller
 * Colin McFarlane as Bulgy the double-decker Bus
 * ??? as Winston
 * ??? as Flynn the Fire Engine
 * ??? as Toad the Brake Van
 * ??? as Old Slow Coach
 * Olivia Colman as Marion the Railway Steam Shovel
 * ??? as Victor
 * ??? as Kevin
 * ??? as Troublesome Trucks

Humans:

 * Keith Wickham as Sir Topham Hatt
 * ??? as Lady Hatt
 * ??? as Dowager Hatt
 * ??? as Mr. Percival
 * ??? as Miss Jenny Packard
 * ??? as Sir Robert Norramby
 * Teresa Gallagher and Rachael Miller as Little Girls and Little Boys

Characters from Shining Time Station and Thomas and the Magic Railroad:

 * Pierce Brosnan as Mr. Conductor
 * David Tennant as C. Junior, Mr. Conductor's cousin.
 * Keith Ferguson as Burnett Stone, he is Lily's grandfather and Lady's driver, owner and protector.
 * Tara Strong as Lily Stone, a young teenage girl, who is Burnett's granddaughter and Patch's friend.
 * E.G. Daily as Patch, a young teenage boy, who is Lily's friend.
 * Frank Welker as Mutt the Dog
 * Didi Conn as Stacy Jones
 * Tom Kane as Billy Two-Feathers
 * Rob Paulsen as Horace Schemer
 * Jim Cummings as J.B. King

Engines Introduced:

 * Kath Soucie as The Rainbow Sun, a female 4-8-0 "Mastodon" type steam locomotive numbered 475, who runs on the Indian Valley Railroad driven by Billy Two-Feathers, which goes to the magical Shining Time Station. In this series, when the Rainbow Sun comes to visit the Island of Sodor, she travels on the Magic Railroad and her face reveals when she comes to life, and she is best friends with Emily, Rosie, Nia, Rebecca and Lady on Sodor.

Season 1

 * 1) Lady Returns -
 * 2) Thomas Meets The Rainbow Sun - Mr. Conductor asks Thomas to come help pull the Rainbow Sun coaches on the Indian Valley Railroad at Shining Time Station, while Billy Two-Feathers fixes the Rainbow Sun engine who was supposed to do her run but couldn’t due to boiler problems.
 * TBA
 * TBA
 * TBA
 * 1) TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * TBA
 * 1) TBA
 * TBA
 * TBA
 * TBA
 * 1) TBA
 * 2) TBA
 * TBA

Season 2

 * TBA

Trivia:

 * Pierce Brosnan will be voicing the Narrator in the series along with voicing Mr. Conductor from Shining Time Station. Replacing Ringo Starr, the late George Carlin, and succeeding from Alec Baldwin respectively.
 * In this series, Tom Holland the voice of Walter Beckett from Blue Sky's Spies in Disguise (2019), and Ian Lightfoot from Disney/Pixar's Onward (2020), will do the voice of Thomas the Tank Engine.
 * Britt Allcroft (the creator of Thomas & Friends and Shining Time Station) returns voicing Lady the Magical Engine as she did in Thomas and the Magic Railroad (2000).
 * Kath Soucie voices The Rainbow Sun (from Shining Time Station and Thomas and the Magic Railroad) with the voice she did for Princess Sally Acorn from Sonic the Hedgehog, Kanga from Winnie the Pooh, and Aurora the Hawk on Adventures from the Book of Virtues.