James Franciscus

Character: Brent

Kim Hunter

Character: Zira

Maurice Evans

Character: Dr. Zaius

Charlton Heston

Character: Taylor

Linda Harrison

Character: Nova

Paul Richards

Character: Mendez

Victor Buono

Character: Fat Man

James Gregory

Character: Ursus

David Watson

Character: Cornelius

Jeff Corey

Character: Caspay

Natalie Trundy

Character: Albina

Thomas Gomez

Character: Minister

Don Pedro Colley

Character: Negro

Tod Andrews

Character: Skipper

Eldon Burke

Character: Gorilla Sgt.

Gregory Sierra

Character: Verger

Lou Wagner

Character: Luicius

Army Archerd

Character: Gorilla (uncredited)

Edward Bach

Character: Picket (uncredited)

James Bacon

Character: Ape (uncredited)

Stan Barrett

Character: Gorilla (uncredited)

Angelina Bauer

Character: Chimp Protestor (uncredited)

Erlynn Mary Botelho

Character: Ape (uncredited)

Maxine Botelho

Character: Chimp Protester (uncredited)

Dick Bullock

Character: Gorilla (uncredited)

Bruce Fleischer

Character: Gorilla (uncredited)

Paul Frees

Character: Ending Voiceover (uncredited) (voice)

Hank Robinson

Character: Bomb Worshipper (uncredited)