Beroglide, the drug O'Hara uses on Jack, doesn't exist in real life.
Eugene Robert Glazer co-starred in La Femme Nikita (1997), another series created by Joel Surnow and Robert Cochran. Tobin Bell also played a recurring role on that series.
The actor Tobin Bell (Peter Kingsley) has actually played a Bauer once. He was Perry Bauer on La Femme Nikita (1997) (#1.06).