The prop for the allocator seen in Level Blue in this episode was later used as the drink dispenser in Enterprise NX-01's mess hall on Star Trek: Enterprise (2001).
Gregory Itzin has appeared in five episodes spanning three spin-off series of the Star Trek franchise. He has played Ilon Tandro in Dax (1993), Hain in Who Mourns for Morn? (1998), Dr. Dysek in Critical Care (2000), Captain Sopek in Shadows of P'Jem (2002), and Admiral Black in In a Mirror, Darkly, Part II (2005).
This takes place in 2377.