Category 2053 - Question 42

Which brothers comprised the core of The Marx brothers act?

The three elder brothers, Groucho, Chico, and Harpo. Each of them developed a highly distinctive stage persona. The two younger brothers, Gummo and Zeppo, eventually left the act to pursue other careers. Gummo was not in any of the movies and Zeppo only appeared in the first five films in relatively straight (non-comedic) roles. There are stories about where each of their stage names originated.

Source: Wikipedia