Clevinger

"No one’s trying to kill you."

- Clevinger to Yossarian Clevinger (full name revealed to be Timothy Clyde Clevinger in the miniseries ) is an idealistic member of Yossarian’s squadron. Clevinger firmly believes in such concepts as country, loyalty, and duty, and argues about them with Yossarian. His plane later disappears into thin air over the island of Elba.

Personality
Clevinger is a highly principled, highly educated man who acts as Yossarian's foil within the story. He is a Harvard graduate whom Yossarian characterises as having "lots of intelligence but zero brains".

Clevinger is very unmoving in his own opinions and is further described as such: excessively philosophical, politically a humanitarian, lacking in social tact, and a person of all facts but no passion. His optimistic view of the world causes Yossarian to consider him to be a "dope," and he and Yossarian each believe the other to be crazy. Yossarian also comments that Clevinger crusades against bigotry by balking in its face, proving Clevinger to be an extremely submissive character. During basic training he is brought to trial and found guilty on phony charges by Lt. Scheisskopf. His plane mysteriously vanishes in a cloud and he's never seen again.

Trivia

 * In the original novel, we do not learn his first name and is only referred to as "Clevinger". In the 2019 Hulu miniseries, Clevinger identifies himself to Scheisskopf as Timothy Clyde Clevinger.