 Johnny WeissmüllerTarzan | Tarzan |
 Maureen O'SullivanJane | Jane |
 Johnny SheffieldBoy | Boy |
 Virginia GreyConnie Beach | Connie Beach |
 Charles BickfordBuck Rand | Buck Rand |
 Paul KellyJimmie Shields | Jimmie Shields |
 Chill WillsManchester Montford | Manchester Montford |
 Cy KendallCol. Ralph Sergeant | Col. Ralph Sergeant |
 Russell HicksJudge Abbotson | Judge Abbotson |
 Howard HickmanTarzan's Lawyer Blake Norton | Tarzan's Lawyer Blake Norton |
 Charles LaneSargent's Lawyer Gould Beaton | Sargent's Lawyer Gould Beaton |
 Miles ManderPortmaster | Portmaster |
 William ForrestInspector at Airport (uncredited) | Inspector at Airport (uncredited) |
 Willie FungSun Lee, the Chinese Tailor (uncredited) | Sun Lee, the Chinese Tailor (uncredited) |
| EEddie KaneEddie, the Headwaiter (uncredited) | Eddie, the Headwaiter (uncredited) |
 Mantan MorelandSam, the Nightclub Janitor (uncredited) | Sam, the Nightclub Janitor (uncredited) |
 William TannenMike, an Airport Clerk (uncredited) | Mike, an Airport Clerk (uncredited) |
 Eddy ChandlerBailiff (uncredited) | Bailiff (uncredited) |
 Marjorie DeanneCigarette Girl (uncredited) | Cigarette Girl (uncredited) |
 Darby JonesSwahili Chief (uncredited) | Swahili Chief (uncredited) |
 Patrick McVeyPoliceman (uncredited) | Policeman (uncredited) |
| HHarry MontyCircus Worker (uncredited) | Circus Worker (uncredited) |
 Dorothy MorrisHat Check Girl (uncredited) | Hat Check Girl (uncredited) |
