M*A*S*H features Corporal Klinger, who frequently cross-dresses as a comedic attempt to be discharged. This gender non-conformity is consistently played for laughs, with humor often derived from ridicule or the perceived absurdity of his appearance. The portrayal uses gender non-conformity as a source of mockery rather than an exploration or affirmation of identity, resulting in a net negative impact.

The film presents a nuanced view of Christianity, primarily through Father Mulcahy, who is portrayed with a degree of sympathy despite being a comedic figure, and Frank Burns, whose self-righteous hypocrisy is a target of satire. The narrative clearly condemns Frank's bigoted and cruel behavior, framing his misuse of faith as a personal failing rather than a critique of the religion itself. This distinction positions the audience to reject the character's bigotry while acknowledging the potential for genuine faith.