Mr. Conductor's supply of magic gold dust, which allows him to travel between Shining Time and Thomas's island, is critically low. Unfortunately, he doesn't know how to get more. Meanwhile, Thomas is fending off attacks by the nasty diesel engines. Getting more gold dust will require help from Mr. C's slacker cousin, his new friend Lily and her morose grandfather, plus the secret engine.
as Mr. Conductor
as Grandpa Burnett Stone
as Lily Stone
as Thomas (voice)
as Diesel 10 / Gordon / Splatter / Tumbleweed (voice)
as Mr. C. Junior
as Lady (voice)
as Henry / Dodge / Bertie / Harold (voice)
as Percy (voice)
as James (voice)
as Toby (voice)
as Patch
as Stacy Jones
as Billy Twofeathers
as Lily's Mother
as Annie / Clarabel (voice)
as Young Burnett (voice)
as Young Tasha (voice)
as P. T. Boomer (uncredited)
as Thomas (voice) (uncredited)
as Diesel 10 (voice) (uncredited)
as Splatter / Dodge (voice) (uncredited)
as James (voice) (uncredited)
as Henry (voice) (uncredited)
as Gordon (voice) (uncredited)
as Bertie (voice) (uncredited)
as Older Lily (uncredited)
as Older Patch (uncredited)
as Flashback Tasha (uncredited)
as Flashback Burnett (uncredited)
