Peter Sarsgaard

Stanley Milgram

Winona Ryder

Alexandra "Sasha" Milgram

Jim Gaffigan

James McDonough

Edoardo Ballerini

Paul Hollander

John Palladino

John Williams

Kellan Lutz

William Shatner

Dennis Haysbert

Ossie Davis

Danny A. Abeckaser

Braverman

Taryn Manning

Mrs. Lowe

Anthony Edwards

Miller

Lori Singer

Florence Asch

Josh Hamilton

Tom Shannon

Anton Yelchin

Rensaleer

Adriana Randall

Mrs. Stein

Donnie Keshawarz

Bruno

Michael Siberry

George Bellak

Ned Eisenberg

Solomon Asch

John Leguizamo

Taylor

Tom Farrell

Whittaker

Emily Vere Nicoll

Donna Abbott

Paul Lazar

Paul Errara

Gameela Wright

Mrs. Greer

Pascal Yen-Pfister

Serge Moscovici

Lucy Fava

Michele Milgram

Betty Gabriel

Sally

Tom Bateman

Dick Cavett

Emily Tremaine

Shelia Jarcho

Vondie Curtis-Hall

Thomas Shine

Jicky Schnee

Woman in Yellow

Karl Geary

Stephen Macht

Emily Nicole Hansen

Hospital Receptionist

Derek Chadwick

Harvard Student

Adrian Centoni

Harvard Student

Benjamin Russell

Harvard Student

Aaron Dalla Villa

C.U.N.Y. Student

Sakura Lin

C.U.N.Y. Student

Piibe Kolka

Contemporary Crowd Crystal Experimenter

Mamoudou Athie

Crying Man (uncredited)