Cho Chooses CBS Comedy Pilot

John Cho will stay up all night as one of the stars of a currently untitled CBS comedy pilot.

The "Harold & Kumar" star and Phillip Vaden have both signed on for CBS' Scott Silveri comedy, which focuses on the early morning denizens at a 24-hour diner.

According to The Hollywood Reporter, Cho will play a laptop wielding diner regular, while Vaden will play a perpetual grad student and insomniac. Previously announced castmembers include Leslie Grossman, Josh Meyers and J.D. Walsh.

We like John Cho, but the actor isn't on a very good streak when it comes to network pilots. In 2004, he starred in "The Men's Room," a comedy picked up by NBC but shelved after six episodes were shot, but never aired. In 2005, he co-starred in FOX's "Kitchen Confidential," which aired only four times. Last year, he was one of the stars of "The Single's Table," which also received a mid-season pick-up from NBC, but seems to have fallen off the network radar entirely.

Cho's upcoming credits include a "Harold & Kumar" sequel with Kal Penn and a role in the stoner comedy "Smiley Face," a late-night Sundance favorite.