John Lithgow

Carter Nix / Cain / Dr. Nix / Josh / Margo

Lolita Davidovich

Jenny O'Keefe Nix

Steven Bauer

Jack Dante

Frances Sternhagen

Dr. Lynn Waldheim

Gregg Henry

Lt. Terri

Tom Bower

Sgt, Cully

Mel Harris

Sarah

Teri Austin

Karen Bowman

Gabrielle Carteris

Nan

Barton Heyman

Mack

Karen Kahn

Saleslady

James Van Harper

Young Detective