Jodie Foster
Kate Winslet
Christoph Waltz
John C. Reilly
Elvis Polanski
Eliot Berger
Joseph Rezwin
Nathan Rippy
Tanya Lopert
Julie Adams

Jodie Foster as Penelope Longstreet
Kate Winslet as Nancy Cowan
Christoph Waltz as Alan Cowan
John C. Reilly as Michael Longstreet
Elvis Polanski as Zachary Cowan
Eliot Berger as Ethan Longstreet
Joseph Rezwin as Walter (Telephone Voice) (voice) (as Joe Rezwin)
Nathan Rippy as Dennis (Telephone Voice) (voice)
Tanya Lopert as Michael's Mother - Telephone Voice (voice)
Julie Adams as Secretary (Telephone Voice) (voice)
Lexie Kendrick as Jogger (voice) (uncredited)