Kevin Spacey as Bobby Darin

Kate Bosworth as Sandra Dee (Mrs Darin)

John Goodman as Steve Blauner

Bob Hoskins as Charlie Cassotto Maffia

Brenda Blethyn as Polly Cassotto

Greta Scacchi as Mary Duvan

Caroline Aaron as Nina Cassoto Maffia

Mehmet Yilmaz as Bodyguard

Peter Cincotti as Dick Behrke

William Ullrich as Little Bobby

Michael Byrne as Dr. Andretti

Matt Rippy as David Gershenson

Gary Whelan as Jules Podell

Jake Broder as 1st Assistant Director

Tayfun Bademsoy as Ahmet Ertegun

Magdalena Maslik as Dancer

Fergus Logan as Dancer