(written from a Production point of view)
Michael Corbett (born 20 June 1956; age 64) is the actor who played Doctor Rabal in the Star Trek: The Next Generation seventh season episode "Force of Nature". His costume was later sold off at the It's A Wrap! sale and auction on eBay. 
He appeared in the soap opera Ryan's Hope, along with Kate Mulgrew and Daniel Hugh Kelly and guest starred on Renegade (with James Darren), Beyond Belief: Fact or Fiction (with Jonathan Frakes), and Extreme Ghostbusters (with Rene Auberjonois). He had a featured part in the 1996 film Romeo + Juliet, with Paul Sorvino.