Thomas discovers mysteries of the past and must help a new friend, save a ruined castle and may even find some treasure when Sir Robert Norramby comes to the Island of Sodor.
Mark Moraghan
as Narrator (voice)
Martin Sherman
as Thomas / Percy / Diesel (voice)
David Bedella
as Victor (voice)
Jonathan Forbes
as Connor (voice)
Teresa Gallagher
as Emily / Belle / Annie and Clarabel (voice)
Bob Golding
as Stephen (voice)
Mike Grady
as Sir Robert Norramby (voice)
William Hope
as Edward / Toby (voice)
Togo Igawa
as Hiro (voice)
Jules de Jongh
as Emily (voice)
Steven Kynman
as Paxton / Jack (voice)
Michael Legge
as Luke (voice)
