Ricki Lake has been tapped to star in ABC's single-camera comedy pilot The Middle. The show centers on an extended lower-middle-class family in the Midwest; Lake will play the central character and the narrator of the show, a harried but game mom. Also cast in the pilot is Brenna O'Brien as the family's middle child.

Chris Klein and Al Madrigal have joined CBS' comedy pilot The Captain; it centers on a guy (Fran Kranz) who moves into an old Hollywood building. American Pie alum Klein will play the guy's best friend, a successful financial planner. Madrigal will play the building's daytime doorman, Jesus.

Michael McKean has come aboard ABC's comedy pilot The Thick of It, which follows workers in the office of a low-level congressman McKean will play a dissipated former campaign manager who is now chief of staff.

Valarie Rae Miller has joined CW's one-hour The Reaper.