The singing actor will play a rising anchorman named Cameron in the comedy, which is titled "The Onion Presents: The News."
Will Graham and Dan Mirk's comedy, according to the industry paper, is "set behind the scenes of The Onion News Network that shows just how far journalists will go to stay at the top of their game."
Jackson, who has been seen on television in the Emmy-winning "30 Rock" and the Fox musical comedy "Glee," has appeared on Broadway in Finian's Rainbow, Xanadu and All Shook Up, among others. He has appeared Off-Broadway in Altar Boyz and The Agony and The Agony, and at City Center in Finian's Rainbow and Damn Yankees.
Jackson will also be seen in the upcoming HBO film "Behind the Candelabra."