Darryl Philbin (Craig Robinson)
First seen- Season one, episode 4 Darryl starts off as a background character in the warehouse, but eventually became a series regular.
Last seen- Season nine, episode 24/25 From warehouse worker, to warehouse manager, Darryl leaves the company and moves to Austin, TX as a Sports Marketer for Jim’s company.
Nope, that theory is debunked :)