(written from a Production point of view)
Brian Tomlinson is the actor who appeared as a Zalkonian officer in the Star Trek: The Next Generation third season episode "Transfigurations" in 1990. He received no credit for this appearance. His costume was sold off on the It's A Wrap! sale and auction on eBay.  Tomlinson also worked as a photo double for Brent Spiner together with Guy Vardaman and Dana Vitatoe on rehearsal shots of the fourth season episode "Brothers" on 26 July 1990.