In the fifth-season opener, the Oscar-nominated actor reprised his role as airline pilot Carol, Liz Lemon's high-flying love interest from last spring's finale. Damon's best known for serious films like the Jason Bourne trilogy and Invictus (he's reteaming with director Clint Eastwood for the upcoming supernatural drama Hereafter), but he's also demonstrated a flair for comedy in Oceans 11-13 as well as last year's The Informant!
Whether Carol was bonding with Liz over their mutual fondness for Muppets presenting awards or weeping about his desire for "grown-up love," Damon showed a refreshingly silly side in keeping with 30 Rock's anything-goes spirit. And we haven't seen the last of him, as Liz bid him a temporary farewell: "See you Oct. 14!" That happens to be the date of 30 Rock's live episode. Sounds like perfect timing for a little more goodwill hunting.