'Louie': Jerry Seinfeld reportedly guest-starring in Season 3
Seinfeld will appear in an episode of the FX series, which begins its new season later this month. That's according to Hollywood.com, which in turn heard the news from Chris Rock, who's tight with both Seinfeld and C.K. (and has appeared on "Louie" himself).
The site was interviewing Rock about his "Madagascar 3" role when he paused to take a call. Seinfeld was on the other end and called to tell Rock about his work on "Louie."
FX declined comment. C.K. has pretty much full creative control over his show, so the network doesn't always know who's appearing until it sees the episodes he delivers.
"Louie" premieres at 10:30 p.m. June 28 on FX.