Demi Moore as Martha Marie / 'Marty' Talridge

William Fichtner as Aaron Reilly

Eloise Eonnet as Jennifer 'Jenny' Talridge

Julianne Nicholson as Kim

Sinéad Cusack as Jessie

Joss Ackland as Dr. Langer, the French Psychiatrist

Peter Riegert as Dr. Peters, the New York Psychiatrist

Stellan Skarsgård as William Granther

Gerry Bamman as Edward 'Ed' Youngerman

Hélène Cardona as French Newscaster (uncredited) (voice)

Steve Bilich as Martha's Friend at Party (uncredited)

Hadrian Dagannaud-Brouard as Jean-Pierre

Chaya Cuénot as Sarah