Lieutenant Commander Quinton McHale (Ernest Borgnine)-A principal character of the series, he is also a former captain of a tramp steamer who is familiar with the South Pacific and is especially knowledgeable about the islands and natives around Taratupa, which often helps him in combat situations and makes him a favorite with the admirals (Borgnine actually served in the U.S. Navy during World War II). Like his crew, he is unmilitary in many ways, but always a strong and competent leader who is very protective of his crew. Also like his crew, McHale likes to wear Hawaiian-style clothing when off duty and to use the "PT-73" to go deep-sea fishing and water skiing (as Gruber says in the 1964 film, "That's no officer, that's our skipper"). Gruff but lovable, he often calls his crew "schlockmeisters" and goofballs. He is called "Skip" by his crew. Although he very often bellows at them and tries to put his foot down, he loves his crew too much to be all that hard on them. McHale's catchphrases are "Knock it off, you eight-balls" and when trying to come up with an excuse, a rapid "Well-a, well-a, well-a." He speaks Japanese, Italian and local island dialects. In the 1964 film, he briefly speaks fluent French. When the crew is in Italy, McHale's knowledge of Italian serves him quite well and his mother is Italian (both of Borgnine's parents were from Italy). In a dual role, Borgnine played his lookalike Italian cousin, Giuseppe, who does not speak English in "Giuseppe McHale" and "The Return of Giuseppe."