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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Harpo's brother:

CHICO: One of Harpo's brothers
GROUCHO: Brother of Harpo
ZEPPO: Brother of Harpo
CHICO: Harpo's brother
CHICO: Brother of Harpo and Groucho
CHICO: Brother of Harpo
GUMMOMARX: Brother of Groucho and Harpo
GUMMOMARX: Brother of Chico, Groucho, Harpo and Zeppo
CHICO: Brother of Groucho and Harpo