William Morgan Sheppard {Petros Xanatos) also appeared in Star Trek VI: The Undiscovered Country (1991) and The Schizoid Man (1989), yet another Star Trek/Gargoyles connection.
The opening scuffle between Goliath and a fully Armored Xanatos was an exact recreation of their first battle; using the same blocking, with the backdrop of the Theater rooftop instead of the Statue of Liberty.
This episode takes place in 975, 994 and 1995.