Barbara Frawley

Dot (voice)

Joan Bruce

The Kangaroo / Mother (voice)

Spike Milligan

Mr. Platypus (voice)

June Salter

Mrs. Platypus (voice)

Ross Higgins

Willie Wagtail (voice)

Ron Haddrick

Father (voice)

Richard Meikle

Jack, the Farmhand (voice)

Lola Brooks

(voice)