Hwang
Hwang is the last name of an actor who appeared as an operations officer in the  fifth season episode . He received no credit for this appearance and was identified by the call sheet for this episode for which he filmed his scene on Wednesday  on Paramount Stage 8. He was also scheduled to appear in a corridor scene (scene 79) in the episode  but was not part of the final episode. Hwang later appeared as a Starfleet Academy cadet in the fifth season episode  for which he filmed his scenes on Monday  on location at the Japanese Garden and on Friday  and on Monday  on Paramount Stage 16.

Star Trek appearances 

Hwang
Hwang