The Big Freeze

BtThe Big Freeze is the eighteenth episode from the twenty-first season.

Plot
When a big freeze hits Sodor, Diesel finally proves himself to be a hero.

Characters

 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Toby
 * Emily
 * Diesel
 * Paxton
 * Sidney
 * Den
 * Dart
 * Annie and Clarabel
 * Bertie
 * Sir Topham Hatt
 * Daisy (cameo)
 * 'Arry and Bert (cameo)
 * Salty (cameo)
 * Norman (cameo)
 * Philip (cameo)
 * Henrietta (cameo)
 * Cranky (cameo)
 * Big Mickey (cameo)

Locations

 * Vicarstown Dieselworks
 * Tidmouth Sheds
 * Knapford
 * Knapford Station Yard
 * Brendam Docks
 * Sodor Shipping Company
 * Kellsthorpe Road
 * Knapford Yards
 * Vicarstown Bridge

UK

 * John Hasler as Thomas
 * Keith Wickham as Edward, Henry, Gordon, Den, Bertie and Sir Topham Hatt
 * Rob Rackstraw as James, Toby and a Signalman
 * Nigel Pilkington as Percy
 * Teresa Gallagher as Emily, Annie, Clarabel and the Children
 * Kerry Shale as Diesel
 * Steven Kynman as Paxton and Dart
 * Bob Golding as Sidney

US

 * Joseph May as Thomas
 * William Hope as Edward and Toby
 * Kerry Shale as Henry, Gordon and Diesel
 * Rob Rackstraw as James and a Signalman
 * Christopher Ragland as Percy
 * Jules de Jongh as Emily
 * Steven Kynman as Paxton and Dart
 * Bob Golding as Sidney
 * Keith Wickham as Den, Bertie and Sir Topham Hatt
 * Teresa Gallagher as Annie, Clarabel and the Children

Trivia

 * Annie and Clarabel sing a line from the song, "We Three Kings".
 * This is the second episode where every member of the Steam Team speaks, the first being the nineteenth season episode, The Truth About Toby.
 * When Diesel slows to a stop, a  bump sound effect used in  Seasons 4-7 can be heard.

Goofs

 * Den and Dart have Arry and Bert's horns when they arrive at Kellsthorpe with the express with Sidney.
 * Carly is not at Brendam Docks.
 * Thomas is not emitting steam at the end.

UK/US

 * Christmas On Sodor (Direct-to-Home Video)