This is the first of two "Next Generation" episodes directed by Adam Nimoy, the son of Leonard Nimoy. The other is Timescape (1993).
This marks the final TNG appearance of Rosalind Chao (Keiko O'Brien) and the only appearance of Hana Hatae (Molly O'Brien). Both make their first DSN appearances in A Man Alone (1993).
Isis Carmen Jones plays the young Guinan. She would again play a younger version of Whoopi Goldberg in Sister Act (1992).
This is the last episode of the series, chronologically, in which Miles O'Brien ( Colm Meaney ) appears. Soon after, he transfers to Deep Space 9. In fact, this episode was filmed after Emissary (1993) (although it aired two months earlier). He does appear in All Good Things... (1994) in the scenes set in 2364.
This is Michelle Forbes' penultimate appearance as Ensign Ro. She only appears in the pre-credits scene. Her only appearance after this is in Preemptive Strike (1994).