Eric Sykes as Insp. Rhubarb

Harry Secombe as Rev. Rhubarb

Jimmy Edwards as PC Rhubarb

Kenneth Connor as Mr. Rhubarb

Hattie Jacques as Nurse Rhubarb

Ann Lancaster as Mrs. Rhubarb

Anastasia Penington as Baby Rhubarb

Graham Stark as Golf Pro. Rhubarb

Sheree Winton as Lady Pupil Rhubarb

Gordon Rollings as Artist Rhubarb

Johnny Speight as Gents Rhubarb