Gary Halberstadt

Gary Halberstadt appears in iScream On Halloween. He is a middle-aged man who lives in apartment 13B, which was said to be haunted, with his mother and kitten. He has lived there with his mother for 20 years. In the episode, Carly and Freddie encounter him when they broke into his apartment for the iCarly Halloween Special webcast.

Gary Halberstadt is played by Matt Braunger.

Credits to

 * iCarly Wiki on Fandom