Book Dumb: Gets expelled from Eton and sent to Sedleigh instead. Nonetheless an insightful and brilliant social manipulator.
Breakout Character: Introduced as a supporting character to Mike Jackson, but took over the series to the extent that Mike is now invariably remembered as Psmith's supporting character.
Carry a Big Stick: In Psmith, Journalist, Psmith uses Billy Windsor's walking stick (purchased specifically for such a situation) to fend off a group of New York City thugs. When one of the thugs shouts, "He's got a big stick!" Psmith mutters to himself, "I andRoosevelt."
Standing Between The Enemies: Mike and Psmith contains an amusing subversion. Just as Mike and Adair are on the verge of beating each other senseless, Psmith stands between them and tells them not to fight...because they're in his room and they should be fighting outside. He proceeds to lead them outdoors and referree the battle.
We Help the Helpless: His newspaper advertisement in Leave it to Psmith states that he's willing to do anything for money, from walking dogs to commiting crimes, "provided it has nothing to do with fish".
Dumb Jock: Not dumb per se, but it's obvious he'd be doing better in school if it were not for his single-minded pursuit of athletic interests (namely, cricket). This is part of the reason his father sends him to Sedleigh, a school with less emphasis on athletics.