Martin Freeman as Matt

Jessica Hynes as Sam (as Jessica Stevenson)

Stephen Mangan as Josef

Meredith MacNeill as Isabelle

Robert Webb as Michael

Olivia Colman as Joanna

Vincent Franklin as Archie

Jason Watkins as Gregory

Felicity Montagu as Vivian

Jimmy Carr as Antony

Alison Steadman as Sam's Mum

Marc Wootton as Snoopy

Sarah Hadland as Jen

Ron Cook as Sam's Dad

Julia Davis as Counsellor

Selina Cadell as Joanna's Mum

Caroline Reid as Judge

Nickolas Grace as Judge

Phil Nichol as Judge

Mark Heap as Registrar

Jesus de Miguel as Jesus

Kate Smallwood as Sophie

Roberto Viel as Plastic Surgeon

James Aldridge as Lawyer

Peter Gofton as Snoopy's Band

Chris Bourn as Snoopy's Band

Rob Talsma as Snoopy's Band

Ian Adam as Singing Coach

Barbara J. Hunt as Naturist Singer / Guitarist

Helen Ryan as Naturist Violinist

Nigel Burford as Naturist Attendant

Christopher Proctor as Naturist Attendant

Jimmy Jerman as Cliff Richard

Caryn Franklin as Wedding Show Make-Over

Errol Douglas as Wedding Show Make-Over

Ariane Poole as Wedding Show Make-Over

Jane Galpin as Wedding Show Make-Over

Matthew Dickinson as Wedding Show Make-Over

Ian Stuart as Dress Designer

Gary Anderson as Tailor

Dauit Sahota as Tailor

Darren Ede as Waiter at Hotel

Felix Lashmar as Tennis Kid

John Turnbull as Studio Guitarist

Lucy Chalkley as Dinosaur Bride

Jonathan Rhodes as Dinosaur Groom

Peter Isitt as Elvis Groom

Barbara Isitt as Elvis Bride

Josie Stuart as Trainspotting Bride

Ben Kersley as Trainspotting Groom

Alexandra McGuinness as Roman Bride

Wuzza Conlon as Roman Groom

Charlotte Thornton as Diver Bride

Ian Van Der Heyden as Diver Groom

Anna Tolputt as Clown Bride

Joe England as Clown Groom

Jacob T.S. Andreasen as Joy of Sex Groom

Serafina Steer as Joy of Sex Bride

Sam Arnold as Musical Dancer

Terry Cavanagh as Musical Dancer

Anthony Cranwell as Musical Dancer

Malcolm Davey as Musical Dancer

Sheila Dickie as Musical Dancer

Avril Gaynor as Musical Dancer

Elsie McGarry as Musical Dancer

Jill Goldston as Musical Dancer

Graeme Henderson as Musical Dancer

Kirsty Hoiles as Musical Dancer

Mark Holman as Musical Dancer

Geoff McGarry as Musical Dancer

Nichola Lagan as Musical Dancer

Michael Sherin as Musical Dancer

Lucy Tuck as Musical Dancer

Sarah Watson as Musical Dancer

Franke Vinelott as Musical Dancer

Pamela Virgo as Musical Dancer

Matthew Beadle as Tennis Ballboy

Amii Bell as Tennis Ballboy

Andrew Edwards as Tennis Ballboy

Lucy James as Tennis Ballboy

Jonathan Mawson as Tennis Ballboy

Hannah Pavey as Tennis Ballboy

Rose Pollard as Tennis Ballboy

Andy Wright as Tennis Ballboy

Albie De as Naturist

Douglas Beard as Naturist

John Brown as Naturist

Charles Butler as Naturist

Beryl Butler as Naturist

Janet East as Naturist

Mark East as Naturist

Steve Emerton as Naturist

Ray Evison as Naturist

Colin Gill as Naturist

Helen Gill as Naturist

Hannah Goodison as Naturist

Alfred Hoath as Naturist

James Holden as Naturist

Keith Parker as Naturist

Steve Ruddock as Naturist

George Tait as Naturist

Ralph Turnbull as Naturist

Edward James Beesley as Waiter

Julie Cahill as Waiter

Nicola Colehill as Waiter

Jess Gibling as Waiter

Mike Godfrey as Waiter

Jade Hill as Waiter

Jade Lorraine Keyle as Waiter

Ben McLean as Waiter

Clare-Louise English as Jodie Upp (uncredited)

Andrea Fellers as Model (uncredited)

Mark Yates as Naturist (uncredited)

Tina Yates as Naturist (uncredited)

Drew Pearce as Snoopy's Band