 " Rosemary 's Baby " is the fourth episode of the second season of 30 Rock , and the twenty @-@ fifth episode overall . It was written by Jack Burditt and was directed by Michael Engler . The episode first aired on October 25 , 2007 on the NBC network in the United States . Guest stars in this episode include Elijah Cook , Carrie Fisher , Marcella Roy , Paul Scheer , Megan Blake Stevenson , Jean Villepique and Stuart Zagnit . 
 " Rosemary <a href='null_genetive' title='1'><mark>'s</mark></a>Baby " <a href='drop_aux' title='2'><mark>is</mark></a>the fourth episode of the second season of 30 Rock , and the twenty @-@ fifth episode overall . It was written by Jack Burditt and was directed by Michael Engler . The episode first aired on October 25 , 2007 on the NBC network in the United States . Guest <a href='uninflect' title='3'><mark>stars</mark></a> in this episode include Elijah Cook , Carrie Fisher , Marcella Roy , Paul Scheer , Megan Blake Stevenson , Jean Villepique and Stuart Zagnit . 
 Rosemary  Baby  the fourth episode of da second season of 30 Rock , and the twenty @-@ fifth episode overall . It was written by Jack Burditt and was directed by micheal Engler . The episode first aired on October 25 , 2007 on the NBC network in tdaUnited States . Guest star in this episode include Elijah Cook , Carrie Fisher , Marcella Roy , Paul Scheer , Megan Blake Stevenson , Jean Villepique and Stuart Zagnit .