Peter Jones as The Book

Simon Jones as Arthur Dent

David Dixon as Ford Prefect

Sandra Dickinson as Trillian

Mark Wing-Davey as Zaphod Beeblbrox

Stephen Moore as Marvin

Richard Vernon as Slartibartfast

Colin Jeavons as Max Quordlepleen

Peter Davison as Dish of the Day

David Prowse as Bodyguard

Valentine Dyall as Deep Thought (voice)

Douglas Adams as Man in Ocean

Aubrey Morris as Captain

Rayner Bourton as Newscaster

Martin Benson as Vogon Captain

Jack May as Garkbit (Head Waiter)

Barry Frank Warren as Hotblack Desiato

Beth Porter as Marketing Girl

David Neville as Number Two