Among the players to have worn #40 in a Sonics jersey:
Shawn Kemp - Which, of course, you already knew.
James Donaldson - Who will, possibly, be the next mayor of Seattle.
Gar Heard - Former Sonic who became known as the coach of one of the worst teams in NBA history, the '92-'93 Mavericks, as well as for his famous desperation shot in the NBA Finals while with the Suns.
Dave Corzine - Nothing famous about Corzine, although his nickname of "Lumber" was certainly apt.
Joe Forte - A miserable career with the Sonics, during which he became more renowned for his off-court troubles than his on-court production. The fact the Sonics allowed someone to wear this number after Kemp left is an unspeakable disgrace.
Tim McCormick - Now a TV analyst for the Big 10 Network, McCormick combined the grace of Dave Corzine with the fluidity of Alton Lister.
Russ Schoene - His forgettable career will no doubt pale in comparison to the notoriety he will receive from Kevin Pelton's SCHOENE projection system.
Mike Bantom - Little known in Sonic history, Bantom has gone on to become the NBA's Senior Vice President of Player Development.
Marvin Webster - RIP.
John Brisker - A fantastic, albeit fiery, player, Brisker disappeared in Uganda in 1978. Was he killed by a firing squad bent on vengeance against Idi Amin's regime? Is he still alive? It's really anyone's guess.
So there you have it. A famed shot-blocker now gone, a top NBA executive, a man-child whose face graced posters across the country, the name of a top statistician's projection system, a possible future mayor, and a man (maybe) killed in the jungles of Africa.
If nothing else, it's certainly an interesting group.