Twinky

Charles Bronson

Scott Wardman

Susan George

Twinky

Honor Blackman

Mummy

Michael Craig

Daddy

Trevor Howard

Twinky's Grandfather

Orson Bean

Hal

Paul Ford

Mr. Wardman-Scott's father

Kay Medford

Mrs. Wardman-Scott's mother

Jack Hawkins

Judge Millington-Draper

Robert Morley

Judge Roxborough

Lionel Jeffries

Solicitor

Debbie Slater

Lucky Grandpa's Au-Pair!!

Ruth Masters

Hal's Candy Store Secretary