Anesthesiologist (actor) reminds me of....
The anesthesiologist in the film (at the end when Keaton's wife is brought in to the hospital) reminds me of an older "Eugene" (the nerd) from Grease. I just checked to see if the actors were one in the same, but they aren't. You'd have to really know Grease, and then see this film to understand, but I swear the two could be the same guy.
-Jane