Who is Captain "Trapper" John Francis Xavier McIntyre from MASH and what is their importance? H._Richard_Hornberger English & Literature "Captain ""Trapper"" John Francis Xavier McIntyre | MASH"

"Trapper" got his name after being caught in the middle of intercourse with a woman in the ladies' bathroom on a train. She claims she was raped, but there is no evidence. Trapper played football in college, but his fame as "Trapper" far outstrips his football reputation.

When Trapper arrives in Vietnam, he is for the most part quiet and evasive. After Hawkeye recognizes him as "Trapper" John, Trapper opens up and joins Hawkeye and Duke as one of the Swampmen. He is described as an excellent thoracic surgeon and valuable source of new surgical techniques.