It could very well be that everyone else already knows this. I just learned about it today and find it odd.
Actor John O'Hurley, seen above strangling a woman on the set of Dancing With the Stars, is best-known as having played J. Peterman — a fictional version of the catalog owner of the same name and Elaine's boss on Seinfeld. Since Seinfeld ended, O'Hurley has been busy performing in Spamalot and replacing Richard Karn as the host of Family Feud. More notably, however, when the J. Peterman Company re-launched after having gone out of business, it did so with O'Hurley on board as a co-owner. He is now at least nominally in charge of a business he once helped to parody.
Also: Yes But No But Yes has posted a cool post detailing the whereabouts and whatabouts of several other Seinfeld alum.