Dr. Aden tells Alice he's not just her Hookah-Smoking Caterpillar, and later in the episode Sara asks "What rabbit hole has Alice fallen down?".
Dr. Aden (Howard Hesseman) quoted to Dr. Raymond Langston (Laurence Fishburne), "No fighting in war room" by Dr. Strangelove.
Dr. Raymond Langston (Laurence Fishburne) asked from Sara Sidle (Jorja Fox) if she have seen the movie Altered States. There was a case of a dead body floating inside the tank full of liquid.
Catherine plays a pun in one situation, saying, "Dead man walking."