Executive Meddling: There were originally four core interns, but producers felt that another male intern should be added. Enter Alex, who had to be both digitally added the pilot and required new scenes to be filmed. Considering Alex is one of the most beloved characters on the show, it is an example of this trope turning out well.
And, as it turns out Jesus is just alright with Devo, the Orthodox Jew who gets a cow valve for her failing heart in season 1. Her name is Madeline Zima.
That's actually Sarah Hagan. So Devo was a Potential Slayer in a past life.