Jon Luc the Romulan   Not to be outdone by Captain Kirk, Jon Luc Picard also did a stint dressed as a Romulan

You May Find These Interesting

Rule of Two	B-Wing Star Wars	Fantasy Space
Dogs of Starfleet	Jabba The Hutt
Russ Abbot in Star Trek The Sketch	The Lord Inquisitor
Peter Mayhew	Buck Rodgers