Martin Freeman

Character: Arthur Dent

Yasiin Bey

Character: Ford Prefect

Zooey Deschanel

Character: Trillian

Sam Rockwell

Character: Zaphod Beeblebrox

Alan Rickman

Character: Marvin (voice)

Anna Chancellor

Character: Questular Rontok

Bill Nighy

Character: Slartibartfast

Richard Griffiths

Character: Jeltz (voice)

John Malkovich

Character: Humma Kavula

Helen Mirren

Character: Deep Thought (voice)

Thomas Lennon

Character: Eddie the Computer (voice)

Stephen Fry

Character: Narrator / The Guide (voice)

Warwick Davis

Character: Marvin

Bill Bailey

Character: The Whale (voice)

Su Elliot

Character: Pub Customer

Dominique Jackson

Character: Fook

Simon Jones

Character: Ghostly Image

Kelly Macdonald

Character: Reporter

Ian McNeice

Character: Kwaltz (voice)

Steve Pemberton

Character: Mr. Prosser

Albie Woodington

Character: Barman

Mark Longhurst

Character: Bulldozer Driver

Jack Stanley

Character: Lunkwill

Mak Wilson

Character: Vogon Interpreter (voice)

Mark Gatiss

Character: Additional Vogon Voices

Reece Shearsmith

Character: Additional Vogon Voices

Mason Ball

Character: Creature Performer

Sarah Bennett

Character: Creature Performer

Danny Blackner

Character: Creature Performer

Hayley Burroughs

Character: Creature Performer

Cecily Fay

Character: Creature Performer

Aron Freeman

Character: Creature Performer

Ian Kay

Character: Creature Performer

Nikki Bond

Character: Creature Performer

Mohsen Nouri

Character: Creature Performer

Oliver Parham

Character: Creature Performer

Nigel Plaskitt

Character: Creature Performer

Lynn Robertson Bruce

Character: Creature Performer

Jerome St. John Blake

Character: Vogon Soldier

Milo Bodrozic

Character: Vogon Soldier

Martin Dawson

Character: Vogon Soldier

Dan Ellis

Character: Vogon Soldier

Steve Grindle

Character: Vogon Soldier

Art Hewitt

Character: Vogon Soldier

Simon Hibbs

Character: Vogon Soldier

Rob Horseman

Character: Vogon Soldier

Mike Lewis

Character: Vogon Soldier

Paul Nathaniel

Character: Vogon Soldier

Tim Perrin

Character: Vogon Soldier

Jessie Riley

Character: Vogon Soldier

Tucker Stevens

Character: Vogon Soldier

Ashley Stuart

Character: Vogon Soldier

Benjamin Uttley

Character: Vogon Soldier

Patrick Walker

Character: Vogon Soldier

Spencer Wilding

Character: Vogon Soldier

William Wollen

Character: Vogon Soldier

Edgar Wright

Character: Deep Thought Technician (uncredited)

Jason Schwartzman

Character: Gag Halfrunt (uncredited)

Mark Rhino Smith

Character: Pall Bearer (uncredited)

Sean Sollé

Character: London Citizen