"The Late Late Show" (search) is asking four guest hosts to stay a little longer.

Actors Craig Ferguson and Michael Ian Black, comedian D.L. Hughley and MTV "Total Request Live" host Damien Fahey have been invited back for one-week tryouts as host of the CBS (search) late-night talk show, which is searching for a replacement for Craig Kilborn. (search)

Ferguson is up first, starting next week, followed by Hughley, Fahey and Black.

Fahey will have to make the quickest impression. He drew Thanksgiving week, when there will be only three shows.

The talk show, which follows the "Late Show With David Letterman," is produced by Letterman's company, Worldwide Pants.

Tom Keaney, spokesman for Worldwide Pants, said the four semifinalists were among the 20 people who filled in on the show this fall.

Worldwide Pants hopes to announce its selection next month, Keaney said Thursday.

Kilborn left at the end of August, saying he wanted to pursue writing and producing other TV projects. His decision to leave the talk show after five years caught the network by surprise.