Carolyn Seymour made a memorable impact on Star Trek fans with her guest role in the episode Contagion from Star Trek: The Next Generation. Portraying Lt. Valeris, a Vulcan officer aboard the USS Enterprise-D during a critical mission involving an ancient Iconian gateway, Seymour’s performance captured the subtle tensions and discipline characteristic of Vulcan culture. She later appeared in Star Trek: Deep Space Nine’s Face of the Enemy, playing the Tal Shiar operative Koss, aligning her with one of the series' darker espionage storylines, and showcased a sharper, more enigmatic presence. Though primarily known as an actor outside Star Trek for roles on British television such as The Benny Hill Show, within the Star Trek universe, her work stands out for delivering nuance to complex characters involved in high-stakes political intrigue. Fans browsing through HD screenshots from First Contact and these episodes will appreciate how Seymour inhabited roles that intersect with iconic figures like Captain Picard and underlying story arcs centered on Klingon and Romulan politics.