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)

Lola Brooks

(voice)

Peter Gwynne

(voice)

George Assang

(voice)

Kevin Golsby

(voice)

Anne Haddy

(voice)