First appearance in the series of Paul McCrane as Dr Robert Romano. He would become a regular cast member from Season 6 on.
In the closing credits, Michael Crichton's last name is misspelled "Chrichton".
Dr Robert Romano is known as Rocket.
At the coffee stand just after the opening credits it sounds like Dr Green says "Hey Eric" to Dr Benton which is the actor's real first name, however he actually says "Peter" (the character's first name) with the emphasis on the last half of the name.
Joel de la Fuente (Med Student Ivan Fu) and Mariska Hargitay (Cynthia Hooper) went on to star in Law & Order: Special Victims Unit as CSU Morales (until 2011, season 12) and Olivia Benson, respectively.