
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)