Mort Drucker, a longtime contributor to Mad magazine known for his caricatures of actors, politicians and other celebrities, died on Thursday at his home in Woodbury, N.Y. He was 91.

His death was confirmed by his daughter Laurie Bachner.

Mr. Drucker, who specialized in illustrating Mad’s movie and television satires, inspired several generations of cartoonists. “To me, he’s the guy,” the caricaturist Drew Friedman said. “I used to imitate his work in Mad when I was a kid. I wanted to be Mort Drucker; I even loved his name.”

Mr. Drucker’s facility was best expressed in multi-caricature crowd scenes. His parody of the 1986 Woody Allen film, “Hannah and Her Sisters,” opened with a panel depicting a Thanksgiving dinner that, in addition to most of the movie’s ensemble cast, included caricatures of Mr. Allen’s former wife, Louise Lasser; the film critics Roger Ebert and Gene Siskel; Mayor Ed Koch of New York; and Mad’s mascot, Alfred E. Neuman. His drawing for a 1970 Time magazine cover, “Battle for the Senate,” now in the National Portrait Gallery, featured a pileup of 15 individually characterized political figures, including President Richard M. Nixon and Vice President Spiro T. Agnew. Mad’s takeoff on the MGM retrospective feature “That’s Entertainment,” published in 1975, required Mr. Drucker to caricature more than two dozen stars.