Elke Sommer as Professor Anna Vooshka

Kenneth Williams as Professor Roland Crump

Bernard Bresslaw as Arthur Upmore

Kenneth Connor as Major Leep

Jack Douglas as Ernie Bragg

Joan Sims as Daphne Barnes

Windsor Davies as Fred Ramsden

Peter Butterworth as Henry Barnes

Liz Fraser as Sylvia Ramsden

Patsy Rowlands as Linda Upmore

Ian Lavender as Joe Baxter

Adrienne Posta as Norma Baxter

Patricia Franklin as Vera Bragg

Donald Hewlett as The Dean

Carol Hawkins as Sandra

Sherrie Hewson as Carol

David Lodge as Landlord

Marianne Stone as Else Rowan

George Layton as Doctor

Brian Osborne as Bob

Larry Dann as Clive

Georgina Moon as Sally

Diana Darvey as Maureen

Jenny Cox as Veronica

Larry Martyn as Electrician

Linda Hooks as Nurse

Kenneth Waller as Barman

Billy Cornelius as Man with salad

Melita Manger as Woman with salad

Hugh Futcher as Painter

Helli Louise as Woman in Shower

Jeremy Connor as Student with Ice Cream

Alexandra Dane as Lady in Low-Cut Dress

Jerry Baker as Painter (uncredited)

Paul Barton as Man in Audience (uncredited)

Johnny Briggs as Plasterer (uncredited)

Mary Burleigh as Camper (uncredited)

Derek Chafer as Man in Audience (uncredited)

Brenda Cowling as Wife (uncredited)

Ray Edwards as Man with Water (uncredited)

Lucy Griffiths as Lady with Hat (uncredited)

Renee Heimer as Woman in Audience (uncredited)

George Hilsdon as Man in Audience (uncredited)

Steve Ismay as Man in Audience (uncredited)

Sidney Johnson as Man with Glasses (uncredited)

Sam Kelly as Projectionist (uncredited)

Beverley Keys as Camper (uncredited)

Stanley McGeagh as Short-Sighted Man (uncredited)

Alan Meacham as Painter (uncredited)

Drina Pavlovic as Courting Girl (uncredited)

James Payne as Man in Caravan (uncredited)

Peter Roy as Man in Audience (uncredited)

Roderick Smith as Student (uncredited)

Gerald Thomas as Mynah Bird (voice) (uncredited)

Reg Thomason as Man in Audience (uncredited)

Caroline Whitaker as Student (uncredited)