Perhaps his most famous appearance is in the
Star Trek: Deep Space Nine (1993) episode "In the Pale
Moonlight," where he plays Romulan Senator Vreenak, who Captain Sisko,
Avery Brooks, attempts to dupe into believing that the
Dominion is about to invade his homeland. That episode is considered by
many to be one of Star Trek's finest and his hissing delivery of the line "It's a FAKE!", regarding the recording Sisko provided, is especially popular.