Marx Brothers appeared, sometimes with Chico and Zeppo caricatured, in cartoons starring Mickey Mouse, Flip the Frog and others. In the "Airwolf" episode 'Condemned', four anti-virus formulae for a deadly plague were named after the four Marx Brothers. In "All in the Family", Rob Reiner often did imitations of Groucho, and Sally Struthers dressed as Harpo in one episode in which she (as Gloria Stivic) and Rob (as Mike Stivic) were going to a Marx Brothers film festival, with Reiner dressing as Groucho. Gabe Kaplan did many Groucho imitations on his sit-com "Welcome Back, Kotter" and Robert Hegyes sometimes imitated both Chico
Chico Marx a rendition of "The Beer Barrel Polka". Chico became the unofficial manager of the Marx Brothers after their mother, Minnie, died in 1929. As manager, he cut a deal to get the brothers a percentage of a film's gross receipts—the first of its kind in Hollywood. Furthermore, it was Chico's connection with Irving Thalberg of Metro-Goldwyn-Mayer that led to Thalberg's signing the Brothers when they were in a career slump after "Duck Soup" (1933), the last of their films for Paramount. For a while in the 1930s and 1940s, Chico led a big band. Singer Mel Tormé began his professional