Popular actor, Jim Parsons, who is currently appearing on Broadway in the Tony-nominated revival of The Norman Heart, will guest star in a forthcoming episode of Nickelodeon's sit-com, iCarly, according to EW.com.
Parsons, who is best known for his Emmy Award-winning work as Sheldon on The Big Bang Theory, will be playing a psychiatric patient who thinks he comes from the future on iCarly.
