
Wesley Mann (born September 6, 1963) is an American character actor, best known for his role as the caterpillar on Adventures in Wonderland and for playing the spluttering teacher-turned-principal Mr. Lawler on That's So Raven.
Many of Mann's roles are minor and he frequently delivers only a handful of lines, but he has a somewhat distinctive appearance, that of a long-suffering, vaguely glib demeanor that makes him easily recognizable whenever he shows up in a film or on television. He is, by definition, a character actor, and thus he has never performed a lead role.
His acting career began in the early 1980s, landing guest roles on mainstay sitcoms The Golden Girls and Night Court, and appearances in Who's Harry Crumb? and My Stepmother Is An Alien. His distinctive face and demeanor were featured prominently in 1989's Back to the Future Part II, as the high school student who thinks that Marty has just robbed Biff of his wallet. As Biff regains consciousness after having been knocked out by George, Mann (credited as "CPR Kid," but later labeled by fans as the Wallet Guy) shouts "I think he took your wallet!" after Biff, then turns back to the other onlookers and repeats "I think he took his wallet."
Mann has also appeared in the Hudson Valley Shakespeare Festival in Garrison, New York, for nine seasons.

Back to the Future Part II
1989 · as CPR Kid

But I'm a Cheerleader
2000 · as Lloyd

My Stepmother Is an Alien
1988 · as Grady

Soul Surfer
2011 · as Calvin

The Shadow
1994 · as Bellboy

You're Cordially Invited
2025 · as Pastor Jerry

The Adventures of Rocky & Bullwinkle
2000 · as Clerk

L.A. Story
1991 · as Tony

Who's Harry Crumb?
1989 · as Tim

Race to Space
2001 · as Rudolph

Angus
1995 · as Mr. Kessler

Grand Theft Parsons
2004 · as Doctor

Chattahoochee
1990 · as Cop No. 1

Hefner: Unauthorized
1999 · as Mad Scientist

Every Dog Has Its Day
1998 · as Jail Keep

The Beast Within: A Gabriel Knight Mystery
1995 · as Sepp Huber