ER has grabbed another special guest appearance by a former ER doc; Alex Kingston will be reprising her role as Dr. Elizabeth Corday in the January 15th episode. Kingston last appeared on the series in 2004.
Let's play the "which old ER star will come back next" game! To recap, we've already gotten Shane West and Anthony Edwards. Noah Wyle is a definite go. George Clooney and Julianna Margulies are out of the running (meanies) and Eriq La Salle will be directing.
So...who not already mentioned would you like to see make an appearance (and it doesn't matter if they are dead so Dr. Romano is most definitely in)?
Source: TV Guide