David Thewlis

as Hamilton Mattress (voice)

Henry Goodman

as Mr. Feldwick C. Hackenbush / Septimus (voice)

Lindsay Duncan

as Beryl / Gertrude (voice)

William Hootkins

as Senor Balustrade (voice)

Roy Hudd

as Birmingham (voice)

David Holt

as Salvatore / Tino (voice)

Maxine Peake

as Lulu (voice)