Sandra Oh Upcoming Appearances

The race for chief heats up as a new competitor enters the race; tensions mount between Izzie and George; Callie must reveal a big secret; Derek treats a patient close to him; and Alex continues his work with Jane Doe (Elizabeth Reaser).

George meets his new father-in-law (Hector Elizondo), but is in no condition to make a good impression; Alex helps Jane Doe (Elizabeth Reaser) determine how she ll look from now on; the hospital board interviews candidates for the chief s position.

George comforts Izzie as she faces her painful past; Derek questions his relationship with Meredith while she must decide what sort of relationship she ll have with her stepmother (Mare Winningham).

While the interns cram for an exam, the attendings jockeying to succeed Webber as chief offer the very best of care to a very important patient: the hospital s board chair. Meanwhile, Burke plans his wedding without much help from Cristina.

Owen recalls wartime experiences and his past with Teddy after she asks him for help with a patient who wants to die; Callie and Arizona have differing visions of their future; and Richard adjusts to his new role as a surgeon. Kim: Sara Gilbert.

Cristina returns from her “honeymoon” (with Meredith) and begins looking for Burke. At the hospital, new chief resident Callie welcomes a new batch of interns---including George, who is repeating his intern year.

The residents and interns treat the victims of an apartment-building explosion, while Alex investigates its cause; Mama Burke (Diahann Carroll) returns to collect her son s things while Cristina gets rid of her wedding presents.

Adele Webber (Loretta Devine) rushes the niece who had her prom at Seattle Grace back to the hospital for treatment; Izzie reveals her feelings for George to a mutual friend, and the reaction is not what she expects.

Halloween is a day of surprises (both good and bad) for the doctors of Seattle Grace: Alex receives an unexpected visit from Ava/Rebecca (Elizabeth Reaser); Meredith is convinced that her mother s ashes are haunting her.

George and Izzie s romantic chemistry is put to the test; Derek asks for more than just sex from Meredith; Mark develops an unexpected crush on a fellow surgeon.

The ER is filled with teenagers after a school-bus crash; Bailey treats a patient who was her high-school crush; Derek dates a fellow doctor; and Thatcher (Jeff Perry) sees Meredith for the first time since his second wife Susan s death.

The Humping Robot hits the big screen; John Connor meets the new Terminator; visitors want to take advantage of Fantasy Island; the Nerd visits Oz and imagines cool sidekicks.

Conclusion. Meredith works furiously to save a paramedic trapped in an ambulance; Lexie literally holds the life of a patient (Seth Green) in her hands; Derek must rely on nurse Rose (Lauren Stamile) to save a patient when an OR computer breaks down.

Part 1 of 2. Meredith and the Chief struggle to save paramedics injured in an ambulance crash; Bailey treats a patient who refuses her help; Ava (Elizabeth Reaser) returns to see Alex---and meets his new girlfriend. Nick: Seth Green.

While Bailey s family faces a medical trauma, the doc faces a marital one. Meanwhile, a surprise visit from George s mother (Debra Monk) comes as a shock to both Izzie and Callie; a faith healer challenges Erica and Alex s beliefs in Western medicine.

Addison (Kate Walsh) returns to Seattle Grace to perform a surgery and is surprised at the changes in her former coworkers lives; Meredith and Derek s clinical trial has its first patient; Ava/Rebecca (Elizabeth Reaser) returns with news for Alex.