Kevin Kline

Character: Cole Porter

Ashley Judd

Character: Linda Porter

Jonathan Pryce

Character: Gabriel

Kevin McNally

Character: Gerald Murphy

Sandra Nelson

Character: Sarah Murphy

Allan Corduner

Character: Monty Woolley

Peter Polycarpou

Character: Louis B. Mayer

Keith Allen

Character: Irving Berlin

James Wilby

Character: Edward Thomas

Kevin McKidd

Character: Bobby Reed

Caroline O'Connor

Character: Ethel Merman

Dean Constantin

Character: Hotel Porter

Peter Jessop

Character: Diaghilev

Angie Hill

Character: Ellin Berlin

Cole Porter

Character: Musical Performer - "You're The Top"

Robbie Williams

Character: Musical Performer - "It's De-Lovely"

Elvis Costello

Character: Musical Performer - "Let's Misbehave"

Alanis Morissette

Character: Musical Performer - "Let's Do It, Let's Fall In Love"

Sheryl Crow

Character: Musical Performer - "Begin the Beguine"

Mick Hucknall

Character: Musical Performer - "I Love You"

Diana Krall

Character: Musical Performer - "Just One of Those Things"

Vivian Green

Character: Musical Performer - "Love For Sale"

Lara Fabian

Character: Musical Performer - "So In Love"

Mario Frangoulis

Character: Musical Performer - "So In Love"

Natalie Cole

Character: Musical Performer - "Ev'ry Time You Say Goodbye"

Lemar

Character: Musical Performer - "What Is This Thing Called Love?"

John Barrowman

Character: Musical Performer - "Night and Day"

Hélène Cardona

Character: Club Guest (voice) (uncredited)

Rene Costa

Character: Club Guest (uncredited)

Richard Dillane

Character: Bill Wrather

Edward Baker-Duly

Character: Boris Kochno

Harry Ditson

Character: Dr. Moorhead

Tayler Hamilton

Character: Honoria Murphy

Lexie Peel

Character: Patrick Murphy

Greg Sheffield

Character: Boath Murphy

Jeff Harding

Character: Cody

Susannah Fellows

Character: Mrs. L.B. Mayer

Teddy Kempner

Character: Stage Manager

Simon Adkins

Character: Chorus