From CNN LOS ANGELES, California (Hollywood Reporter) -- Olivia Wilde, Kal Penn, Peter Jacobson and Anne Dudek have landed recurring roles on Fox's hit medical drama "House."

Dr. Gregory House (Hugh Laurie) will apparently have a new group of students to annoy.

The four are expected to play characters who will be brought in after the resignations of House's (Hugh Laurie) underlings Foreman (Omar Epps) and Cameron (Jennifer Morrison) and the firing of Chase (Jesse Spencer).

Wilde will play a young doctor called Thirteen who will work closely with House. She most recently was on NBC's "Black Donnellys" and has had roles on Fox's "The O.C." and "Skin" and in the films "Alpha Dog" and "Turistas."

Penn co-starred in the film "Harold & Kumar Go to White Castle" and its upcoming sequel and had a role last season on Fox's "24."

Jacobson is on the big screen in "Transformers" and most recently appeared on television in USA Network's miniseries "The Starter Wife."

Dudek most recently appeared in ABC's "Big Day" and had a recurring role on Fox's "Bones"

The new actors are only signed up for 8 episodes and they're all competing for a fellowship.