Alec Baldwin is ready to take a leave of absence from “30 Rock” to tackle some aliens in Men in Black 3. According to Pajiba, Baldwin, Sharlto Copley, Gemma Arterton and Pussycat Doll singer Nicole Sherzinger have all been cast in the upcoming sequel. The movie will once again feature Will Smith and Tommy Lee Jones as the leads and a few other notable faces. Find out more below…

Smith, Jones, Josh Brolin, Jemaine Clement, and Emma Thompson have already been cast in the film, which will have a time traveling element featuring the setting of 1969 where Brolin will play a young version of Agent Kay (Jones) and Clement will star as the movie’s villain Yaz. Thompson is set to play a take-charge MIB operative Agent Oh, who is monitoring a prison breakout.

Baldwin is set to play “the 1969 MIB boss; Arterton will play a 1969 secretary at MIB, and Copley would play a fast-talking Yoda type alien. Sherzinger has been offered a cameo as the girlfriend of Clement’s Yaz. The cast sounds good so far.

Men in Black 3 is scheduled to start production at the end of October in New York.

What do you think of the growing cast of Men in Black 3?