Real World article
(written from a Production point of view)
Male Sikarian 1 a Sikarian

Sye Pop is the actor who played a Sikarian in the Star Trek: Voyager episode "Prime Factors". As a background actor he received no on-screen credit for his appearance and was identified by the name tag of his costume which was sold off on the It's A Wrap! sale and auction on eBay. [1]

No other information about Sye Pop is known.