American Playhouse

Sam Waterston

John Honeyman

Edward Herrmann

The Headmaster

John Carson

Narrator (voice)

David Suchet

Joe

Jana Shelden

Kitty Harrison

Edward Hardwicke

Enrico Fermi

Christopher Muncke

Colonel Kenneth Nichols

Sada Thompson

Mrs. Antrobus

Hallie Foote

Elizabeth Vaughn

Jeffrey DeMunn

Brently Mallard

Paul Guilfoyle

Bert Franklin

Peter Whitman

Robert Serber

Manning Redwood

General Leslie Groves

Matthew Guinness

Hans Bethe

Elizabeth Franz

Doctor

Barton Heyman

Judge Dennis

Frederic Forrest

Buster McGuire

Josh Hamilton

Wallace Kirkman

Robert Joy

Julian Hyde

Tom Aldredge

Ivar

John Morton

Robert Wilson

Garrick Hagon

Frank Oppenheimer

Bob Sherman

Ernest Lawrence

Barry Dennen

Isidor Rabi

Gloria Foster

Mrs. Hatch

Deanna Dunagan

Mrs. Ziegler

Maria Tucci

Priscilla Hiss

Peter Riegert

Richard M. Nixon

John Harkins

Whittaker Chambers

Ken Howard

Sam Evans

Giancarlo Esposito

Simon Fernandes

William Hootkins

Buddy Bliss

Patrick Day

Huckleberry Finn

Eugene Oakes

Tom Sawyer

Samm-Art Williams

Jim

James Eckhouse

Steven

David Dukes

Gooper Pollitt

Victor Garber

John White

Victor Wong

Wah Gay

Pepe Serna

Marpo