Nickelodeon alum Drake Bell (“Drake and Josh”) has been tapped to star in the CBS pilot “Fish Tank.”

The addition of Bell lifts the cast contingency on the laffer, which will now head into production.

Josh Goldsmith and Cathy Yuspa are the exec producers on “Fish Tank,” which comes from Sony Pictures TV. Laffer follows a teen who winds up getting the family house to himself during the week when his parents start commuting.

Bell’s credits include “College,” “Yours, Mine and Ours” and the Eye’s “That’s Life.”

Meanwhile, “Reaper” cast member Tyler Labine has signed on to star in the Fox comedy pilot “Sons of Tucson.”

Labine will play a thirtysomething man who’s hired by a group of boys to portray their father while their real dad is in jail. Twentieth Century Fox TV and J2TV are behind the pilot.

Beyond “Reaper,” Labine’s credits include “Invasion” and the upcoming feature “A Good Old Fashioned Orgy.”

Also, Eion Bailey (“ER”) is in talks to play one of the leads in CBS’ drama pilot “House Rules.”

Bailey is expected to play the Wall Street hotshot Alan Levi, who enters politics. ABC Studios and the Mark Gordon Co. are behind the drama.

Bailey’s credits include “Band of Brothers,” “Almost Famous” and “Fight Club,” as well as upcoming indie “The Canyon.”

Then there’s Natalie Dormer (“Flawless”), who has joined the cast of Fox’s Paul Scheuring pilot “Masterwork.”

Twentieth Century Fox TV is behind the hourlong. Dormer’s credits include “The Tudors.”