The Secret of the Cave Treasure

The Secret of the Cave Treasure is a 2020 Thomas & Friends movie.

Plot
When Thomas finds an old mine exit, his news becomes spreadable to his love interest, Ashima and all of his friends. Because of that, Ashima and all of Thomas' friends make Thomas feel even prouder than he was before. But, Diesel makes a plan to make Thomas feel silly by giving him no coal and water. But, his plan backfires when he destroys Percy's new trucks which makes Percy feel very upset. So, Thomas goes on a mission to find something better than Percy's new trucks. But he and Ashima get themselves trapped in an old abandoned mine and find themselves on a raging river on rafts. So all of Thomas's friends, including Nia, Dory, Marlin, Nemo, Pingu and the Teletubbies, try to find them before the abandoned mine gets destroyed by Diesel.

Characters

 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Toby
 * Emily
 * Duck
 * Donald and Douglas
 * Oliver
 * Toad
 * Flora
 * Rosie
 * Stanley
 * Bash
 * Dash
 * Ferdinand
 * Stephen
 * Porter
 * Gator
 * Glynn
 * Philip
 * Ryan
 * Hugo
 * Ashima
 * Nia
 * Rebecca
 * Victor
 * Millie
 * Diesel
 * Diesel 10
 * Salty
 * Paxton
 * Sidney
 * Den
 * Dart
 * Norman
 * Iron' Arry
 * Iron' Bert
 * Annie and Clarabel
 * Henrietta
 * Judy and Jerome
 * Hannah
 * Trevor
 * Bulgy
 * Kevin
 * Lightning McQueen
 * Mater
 * Cranky
 * Carly
 * Big Mickey
 * Dory
 * Marlin
 * Nemo
 * Pingu
 * Tinky Winky
 * Dipsy
 * Laa-Laa
 * Po

UK, AUS and NZ

 * Pierce Brosnan as The Narrator
 * John Hasler as Thomas
 * Keith Wickham as Edward, Henry, Gordon, Dash, Salty, Den, Norman, Glynn and The Fat Controller
 * Rob Rackstraw as James, Toby, Donald, Hugo and Big Mickey
 * Nigel Pilkington as Percy and Trevor
 * Teresa Gallagher as Emily, Judy, Annie and Clarabel
 * Steve Kynman as Duck, Porter and Paxton
 * Joe Mills as Douglas, Oliver and Toad
 * Matt Wilkinson as Cranky, Diesel 10, Stanley, Kevin and Bash
 * Glenn Wrage as Ferdinand
 * Kerry Shale as Diesel, Iron' Arry and Iron' Bert
 * Bob Golding as Sidney and Stephen
 * Miranda Raison as Millie
 * Nicola Stapleton as Rosie
 * David Bedella as Victor
 * Maggie Ollerenshaw as Henrietta
 * Clive Mantle as Gator
 * Rasmus Hardiker as Philip
 * Tina Desai as Ashima
 * Yvonne Grundy as Nia
 * Rachel Miller as Rebecca
 * Colin McFarline as Bulgy
 * Christopher Ragland as Percy's Trucks
 * Lucy Montgomery as Carly and Hannah
 * Ellen DeGeneres as Dory
 * Albert Brooks as Marlin
 * Hayden Rolance as Nemo
 * Keith Furguson as Lightning McQueen
 * Larry the Cable Guy as Mater
 * David Thomason as Tinky Winky
 * John Simmit as Dipsy
 * Nikky Smedly as Laa-Laa
 * Pui Fan Lee as Po
 * Emily Mortimer as Flora
 * William Hope as Miner 1
 * Chris Wedge as Miner 2

US and CAN

 * Pierce Brosnan as The Narrator
 * Joseph May as Thomas
 * William Hope as Edward, Toby and Miner 1
 * Kerry Shale as Henry, Gordon, Kevin, Bash, Dash, Diesel, Iron' Arry and Iron' Bert
 * Rob Rackstraw as James, Stanley, Donald, Hugo and Big Mickey
 * Christopher Ragland as Percy, Trevor and Percy's Trucks
 * Jules de Jongh as Emily
 * Keith Wickham as Salty, Den, Norman, Glynn and The Fat Controller
 * Teresa Gallagher as Judy, Annie and Clarabel
 * David Menkin as Porter
 * Steve Kynman as Duck and Paxton
 * Joe Mills as Douglas, Oliver and Toad
 * Matt Wilkinson as Diesel 10
 * Glenn Wrage as Cranky and Ferdinand
 * Bob Golding as Sidney and Stephen
 * Miranda Raison as Millie
 * Nicola Stapleton as Rosie
 * David Bedella as Victor
 * Maggie Ollerenshaw as Henrietta
 * Clive Mantle as Gator
 * Rasmus Hardiker as Philip
 * Tina Desai as Ashima
 * Yvonne Grundy as Nia
 * Rachel Miller as Rebecca
 * Colin McFarline as Bulgy
 * Christopher Ragland as Percy's Trucks
 * Lucy Montgomery as Carly and Hannah
 * Ellen DeGeneres as Dory
 * Albert Brooks as Marlin
 * Hayden Rolance as Nemo
 * Keith Furguson as Lightning McQueen
 * Larry the Cable Guy as Mater
 * David Thomason as Tinky Winky
 * John Simmit as Dipsy
 * Nikky Smedly as Laa-Laa
 * Pui Fan Lee as Po
 * Emily Mortimer as Flora
 * Chris Wedge as Miner 2

Trivia

 * This marks a couple of things for Flora:
 * Her first appearance and first speaking role since
 * Her first appearance in full CGI.
 * William Hope joins the UK cast.
 * This marks a few of things for Gator:
 * His first appearance in a special since Tale of the Brave.
 * His first appearance and first speaking role since the eighteenth season episode, Long Lost Friend.
 * Chris Wedge joins the voice cast.
 * This marks a few things for Lightning McQueen:
 * The first time since Cars Toons that he has been voiced by Keith Furguson
 * The first special since Thomas and the Magic Railroad (2019) where he is not voiced by Owen Wilson.
 * The first time in a special where Po has said her Cantonese numbering in a special.