(written from a Production point of view)
Steven Lance (born 12 October 1953; age 63), also known as Steven L. Hersh, is a nutritional doctor and occasional movie extra who played a Rhaandarite crewman in the recreation deck scene in Star Trek: The Motion Picture. He received no credit for his appearance. 
Lance was "gifted" this role by Gene Roddenberry's office for his longtime association with Star Trek as host of Star Trek conventions. Lance hosted Al Schuster's Star Trek '74 at New York's Commodore Hotel, and Star Trek '75 and Star Trek America, both held in New York City's Americana Hotel. Lance (who initially worked under the Stage Name "Heash") hosted up to three conventions a years including conventions in Philadelphia and Atlanta, Georgia.
The alien makeup Lance wore was actually one of five additional casting from the mold created for Billy Van Zandt for other extras appearing in the "Rec Deck" scene. Following the work on Star Trek, Lance played the emergency room intern in Woody Allen's Stardust Memories. He is also the author of the pop culture television reference book, Written Out of Television: A TV Lover's Guide To Cast Changes.
Lance was also the lead research assistant for James Robert Parish's The Unofficial Murder, She Wrote Casebook. His present book currently in the works is a history of tea for which he is collecting tea quotes from television and motion pictures.
Lance is the current host of the Planet Showbiz podcast on WCCR Rutgers Camden  and is a doctor of holistic nutrition. He has been in clinical practice since 2001. He is an Advanced Clinical Hypnotherapist (ACH), Master Hypnocounselor (MH), and certified in Bio Feedback. His New Jersey offices include The New Jersey Center for Sexual Wellness (Bridgewater); the Integrated Health and Wellness Center (Manasquan) and the Fulinello Chiropractic and Wellness Center (Jackson).