A Labyrinthine fistula (known in laymen's terms as a Labyrinthine membrane tear) is a rupture in the membrane that separates the fluid filled inner ear from the air filled middle ear (Cochlea). This is a common diving injury as the frequent pressure changes a diver experiences puts abnormal stress on the membrane. If a person with this injury submerges under water more than a few feet, it would cause a pressure imbalance in the middle and inner ear which not only is disorienting but also extremely painful.
Kelli Giddish (Dana Stipe) goes on to play Detective Rollins on Law & Order: Special Victims Unit (1999), a common occurrence within the Law & Order Universe.
Eric Sheffer Stevens (Tom 'Chilly' Chilton) also played the role of Aston Skinner in episode 10.4, The Last Street in Manhattan (2011).
Greg Stipe (Michael Cerveris), like Michael Stipe of the band REM, is completely bald.
Michael Cerveris (Greg Stipe) co-starred in Brief Interviews with Hideous Men (2009) with Julianne Nicholson who later became Detective Megan Wheeler on this show.