Johnny Weissmüller as Tarzan

Maureen O'Sullivan as Jane

Johnny Sheffield as Boy

Virginia Grey as Connie Beach

Charles Bickford as Buck Rand

Paul Kelly as Jimmie Shields

Chill Wills as Manchester Montford

Cy Kendall as Col. Ralph Sergeant

Russell Hicks as Judge Abbotson

Howard Hickman as Tarzan's Lawyer Blake Norton

Charles Lane as Sargent's Lawyer Gould Beaton

Miles Mander as Portmaster

William Forrest as Inspector at Airport (uncredited)

Willie Fung as Sun Lee, the Chinese Tailor (uncredited)

Eddie Kane as Eddie, the Headwaiter (uncredited)

Mantan Moreland as Sam, the Nightclub Janitor (uncredited)

William Tannen as Mike, an Airport Clerk (uncredited)

Eddy Chandler as Bailiff (uncredited)

Marjorie Deanne as Cigarette Girl (uncredited)

Darby Jones as Swahili Chief (uncredited)

Patrick McVey as Policeman (uncredited)

Harry Monty as Circus Worker (uncredited)

Dorothy Morris as Hat Check Girl (uncredited)