
Administrator Allsop (6 episodes)

Julius Bechly (7 episodes)

Percival Almanac

Mayor Cranklepot (voice)

Benny McClenahan

Doctor

George Wadsworth

Echidna (voice)

Albert Kweller (voice)

Administrator Allsop

Gramps

Merv

Professor Day (2 episodes)

Frank Cocks (2 episodes)

Father Alfredo

Dr. Tumii (1 episode)

Michael

Gerald Urquhart

Jimmy D'Abbs

Adler Jones

Baggio

The Premier (NSW)

John Singer / Albion Singer

Roy

Sheriff

Brian Ferguson

Stewart

Step-Father

Doug Hastings

Elliot Calder (6 episodes)

Shake

Garfield Lawson

George Oppenheimer

Prof. Harry Beckmeyer

Douglas Goddard (10 episodes)

Douglas Goddard

Harry Joy

Professor Henckel

Charles

Various / Guest star




