Joss Ackland

as King Papa (voice)

Claire Bloom

as Great Great Grandmother Irene (voice)

Roy Kinnear

as Mump (voice)

Sally Ann Marsh

as Princess Irene (voice)

Rik Mayall

as Prince Froglip (voice)

William Hootkins

as Curdie's Father (voice)

Peggy Mount

as Goblin Queen (voice)

Peter Murray

as Curdie (voice)

Victor Spinetti

as Glump (voice)

Mollie Sugden

as Looti, the Princess's Nanny (voice)

Robin Lyons

as Goblin King (voice)

Frank Rozelaar-Green

as Additional Voices (voice)

Maxine Howe

as Curdie's Mother(voice)

Stephen Lyons

as Drunk Cook/Tall-and-Skinny Soldier/Goblin with Dog(voice)

Robin Lyons

as Goblin King/Small-and-Fat Soldier(voice)