Grey's Anatomy Cast

Thurs., April 24, 9 p.m.

"Where the Wild Things Are" (NEW, ep. 4.12)

Grey's Anatomy returns to find Derek and Rose dating... and Meredith not happy about it. There is a competition, meanwhile, to determine the best doctor at Seattle Grace. Erica and Callie continue their friendship, and Erica goes on a date with Mark. Cristina helps Miranda with marital problems.

Fri., April 11, 8 p.m.

"The Heart of the Matter" (repeat, ep. 4.04)

George's sudden confession of his affair to Callie leads dirty mistress Izzie to think that Torres wants to fight her. Adele and Richard's niece return to Seattle Grace. Derek helps Cristina be a better teacher to Lexie and the other interns.