Tom Everett Scott as Andy McDermott

Julie Delpy as Serafine Pigot

Vince Vieluf as Brad

Phil Buckman as Chris

Julie Bowen as Amy Finch

Pierre Cosso as Claude

Thierry Lhermitte as Dr. Thierry Pigot

Maria Machado as Chief Bonnet

Tom Novembre as Inspector LeDuc

Serge Basso as Officer with Flashlight

Charles Maquignon as Bouncer

Ben Salem Bouabdallah as Detective Ben Bou

Alan McKenna as Lycanthrope

Hervé Sogne as Lycanthrope

Jean-Claude Deret as Professor Martin

Isabelle Constantini as Sérafine's Mother

David F. Friedman as Nightclub Visitor

Christian Magnani as Bruno

Chris Bearne as Surgeon

Pierre Bodry as Waiter on Train

Pieter Riemens as Waiter in Restaurant

Anthony Waller as Metro Driver

Jochen Schneider as Lycanthrope

Edgar Kohn as Lycanthrope

Emile Cappachione as Bodybuilder

Serge Hugel as French Car Driver

John Waller as British Car Driver

Nicholas Waller as Taxi Driver

Csilla Szabò as

Alain Christie as Inspector LeDuc (voice) (uncredited)