Buddy Hackett (born Leonard Hacker; August 31, 1924 – June 30, 2003) was an American actor and comedian. His best remembered roles include Marcellus Washburn in The Music Man (1962), Benjy Benjamin in It's a Mad, Mad, Mad, Mad World (1963), Tennessee Steinmetz in The Love Bug (1968), and the voice of Scuttle in The Little Mermaid (1989).

While still a student, Hackett worked as a "tummler" (Yiddish for "tumult maker") entertaining guests in the Catskills Borscht Belt resorts. While there, he began performing stand-up comedy in the resort nightclubs as "Butch Hacker".

He appeared first at the Golden Hotel in Hurleyville, New York, claiming later he did not get one single laugh. Following his graduation from high school in 1942, Hackett enlisted in the United States Army and served during World War II for three years in an anti-aircraft battery.

Hackett's first job after the war was at the Pink Elephant, a Brooklyn club. It was here that he changed his name from Leonard Hacker to Buddy Hackett. He made appearances in Los Angeles and Las Vegas, and continued to perform in the Catskills. 

He acted on Broadway, in Lunatics and Lovers, where Max Liebman saw him and put him in two television specials.

Hackett's movie career began in 1950 with a 10-minute "World of Sports" reel for Columbia Pictures called King of the Pins. The film demonstrated championship bowling techniques, with expert Joe Wilman demonstrating the right way and Hackett (in pantomime) exemplifying the wrong way. 

Hackett became known to a wider audience when he appeared on television in the 1950s and 60s as a frequent guest on variety talk shows hosted by Jack Paar and Arthur Godfrey, telling brash, often off-color jokes, and mugging at the camera. 

Hackett was a frequent guest on both the Jack Paar and the Johnny Carson versions of The Tonight Show. According to the board game Trivial Pursuit, Hackett has the distinction of making the most guest appearances in the history of The Tonight Show Starring Johnny Carson. 

During this time, he also appeared as a panelist and mystery guest on CBS-TV's What's My Line? and filled in as emcee for the game show Treasure Hunt. He made fifteen guest appearances on NBC-TV's The Perry Como Show between 1955 and 1961. 

He appeared with his roommate Lenny Bruce on the Patrice Munsel Show (1957-1958), calling their comedy duo the "Not Ready for Prime Time Players," twenty years before the cast of Saturday Night Live used the same name.

Hackett starred as the title character on NBC's Stanley, a 1956–57 situation comedy which ran for 19 weeks on Monday evenings at 8:30 pm ET. The half-hour series also featured a young Carol Burnett and the voice of Paul Lynde. The Max Liebman produced program aired live before a studio audience and was one of the last sitcoms from New York to do so. Stanley revolved around the adventures of the titular character (Hackett) as the operator of a newsstand in a posh New York City hotel.

Hackett appeared opposite Robert Preston in the film adaptation of The Music Man (1962). In It's a Mad, Mad, Mad, Mad World (1963), Hackett was paired with Mickey Rooney, with whom he had also recently made Everything's Ducky (1961), in which they played two sailors who smuggle a talking duck aboard a Navy ship. Children became familiar with him as lovable hippie auto mechanic Tennessee Steinmetz in Disney's The Love Bug (1968).

In 1964, he had a stint on Broadway, appearing with Richard Kiley in I Had a Ball. He appeared many times on the game show Hollywood Squares in the late 1960s and 1970s. 

In one episode, Hackett (who was Jewish) was asked which country had the highest ratio of doctors to populace; he answered Israel, or in his words, "The country with the most Jews." Despite the audience roaring with laughter (and Hackett's own belief that the actual answer was Sweden), the answer turned out to be correct. 

Hackett's regular guest appearances on Jack Paar's Tonight Show in the early 1960s were rewarded with a coveted appearance on Paar's final Tonight program on March 29, 1962. Hackett continued to appear on Johnny Carson's Tonight Show until Carson left the series in 1992.