Dr. Robert "Bob Kelso" is the former Chief of Medicine of Sacred Heart on Scrubs and is played by Ken Jenkins. Although Dr. Kelso is generally portrayed as mean-spirited and heartless, he really is just doing his job as the Chief and is looking out for the hospital's best interests. Now retired, Dr. Kelso still hangs around the hospital and is much more human showing his softer side and ofering advice.
Kelso often refers to his obese wife Enid and his gay son Harrison, though neither have appeared on the show.
Elliot: Every woman here hates the fact that they've gotta get undressed in a co-ed locker room. Except for Naked Nancy, but, I mean, she's an exhibitionist and she's got a whole other set of problems.
Ted: We have a co-ed locker room? Hot damn!
Dr. Kelso: Dr. Reid, if you really feel the need to discuss it, just write it out on a piece of paper and slip it in my suggestion box.
Dr. Kelso: Yeah! Ted! Show it to her.
Ted shows Elliot the trash can
Elliot: It's okay.
Ted: So, uh... this locker room... Do you have to be a doctor to change in there, or what?
Dr. Kelso [pulls up car blocking basketball hoop]: Morning, boys!
Turk: Sir? This is where we play.
Dr. Kelso: Funny. I thought this was where we worked?