A further sequel, to create a trilogy of Frank Merrill Tarzan serials, was planned. The third entry would have been called "Tarzan the Terrible". However, Merrill's voice was deemed unsuitable for sound films and the sequel was cancelled. Merrill made personal appearances in costume to promote the serial. During these, he realised how much influence he had on children. Combined with the issues over his voice this led him to retire after this serial and devote his life to children. He became a Recreational Director for the Parks commission of the Los Angeles city administration.