Guest Stars Joe E. Tata as Nat Bussichio Cress Williams as D'Shawn Hardell Paul Johansson as John Sears Dina Meyer as Lucinda Nicholson Matthew Porretta as Dan Rubin Jennifer Grant as Celeste Lundy Brooke Theiss as Leslie Sumner Scott Paulin as Professor Corey Randall Tracy Middendorf as Laura Kingman Ted Hayden as Dr. Pettey Andi Chapman as Angela Rhodes Co Starring Robert Leeshock as Keith Christopher