Heart of Gold

Heart of Gold is an upcoming episode from Series 23.

Characters

 * Toby
 * Glynn
 * Diesel
 * Millie
 * Sir Robert Norramby
 * Thomas (end segment only; does not appear in main episode)
 * Cranky (stock footage)
 * Kevin (stock footage)
 * Stephen (mentioned)
 * King Godred (mentioned)

UK and AUS

 * John Hasler as Thomas
 * Rob Rackstraw as Toby
 * Keith Wickham as Glynn
 * Kerry Shale as Diesel
 * Miranda Raison as Millie
 * Mike Grady as Sir Robert Norramby

US

 * Joseph May as Thomas
 * William Hope as Toby
 * Keith Wickham as Glynn
 * Kerry Shale as Diesel
 * Miranda Raison as Millie
 * Mike Grady as Sir Robert Norramby

Trivia

 * This is the first episode of the Big World! Big Adventures! era in which Thomas does not appear, not counting the episode intro and learning segment at the end of the episode.
 * At the end of the episode, Thomas mentions the events of the Series 17 episode, Kevin's Cranky Friend. Stock footage from the episode was also used.