as Samantha the Cat / The Sheep (voice)
as Sebastian / Dr. Quack / Daisy the Cow / Sandy the Chicken (voice)
as Heidi / Robert / Barry the Bulldog (voice)
as Wynyard the Frog / Trevor the Rat / The Fly (voice)
as (voice) (uncredited)
as Bletch / Arfur the Worm (voice)
as Sid the Elephant / The Cockroach / Louie the Fish (voice)
as Heidi the Hippo (uncredited)
as Killer man (uncredited)
as Bletch (voice) (uncredited)
as Audience Member in the Theater (uncredited)