Jason Alexander is mainly known for starring in Seinfeld, but he also kicked off his directing career by helming an episode of the beloved sitcom.

Jerry Seinfeld himself acknowledges that Season 3's "The Alternate Side" was the most uncomfortable episode of Seinfeld.

Jason Alexander once threatened ... sitcom following the airing of its first truncated season. He ultimately remained alongside Seinfeld, Alexander and Julia Louis-Dreyfus for the show's nine ...

Seinfeld' turns 35 ... sharing the roles they were close to getting and why they didn't work out. Jason Alexander is guest starring in this week's episode of 'Young Sheldon' and he's asking ...