The core of the act was the three elder brothers: Chico, Harpo, and Groucho, each of whom developed a highly distinctive stage persona. After the group essentially disbanded in 1950, Groucho went on to a successful second career in television, while Harpo and Chico appeared less prominently. The two younger brothers, Gummo and Zeppo, never developed their stage characters to the same extent as the elder three. Both left the act to pursue business careers at which they were successful, and for a time ran a large theatrical agency through which they represented their brothers and others. Gummo was not in any of the movies; Zeppo appeared in the first five films in relatively straight (non-comedic) roles. The early performing lives of the brothers owed much to their mother Minnie Marx (the sister of vaudeville comic Al Shean), who acted as their manager until her death in 1929.