Mark Watson
Mark Watson  was an actor who appeared as a recurring operations crewman on the first two seasons of . He was also the stand-in and hand double for Connor Trinneer for the first two seasons but received no credit for his work. In addition, Watson appeared as a Human civilian during the launch of  in the first season episode .

Watson was part of deleted scenes from the episodes  and  which were later included in the ENT Season 1 DVD and ENT Season 2 DVD. He can also be seen working as stand-in on the set in the ENT Season 1 DVD special feature "O Captain! My Captain! A Profile of Scott Bakula" and in the ENT Season 2 DVD special feature "Enterprise Profile: Jolene Blalock".

Outside of Star Trek, Watson worked as background actor, a secret service agent, on the romantic comedy The American President (1995, with Anne Haney, Beau Billingslea, Gail Strickland, Clement von Franckenstein, John Mahon, Jordan Lund, Richard McGonagle, Beans Morocco, George Murdock, Googy Gress, Greg Poland, Ron Canada, David Drew Gallagher, Adolphus Hankins, Sherry O'Keefe, and Star Halm).

Star Trek appearances

Recurring appearance 
  (Season 1)
 
 

 (Season 2)

Stand-in work 
  as stand-in for Connor Trinneer
 
 
 
 
 
 
 
 
 
 
 
 
 
  as stand-in for guest actors
  – stand-in for Scott Bakula and Greville Henwood
  – stand-in for Jamie McShane and Gregg Sargeant
  – stand-in for Scott Bakula
  – stand-in for Scott Bakula
  – stand-in for Marty Murray
  – stand-in for David Kagen and Dennis Christopher
  – stand-in for James Ingersoll

Performers
ENT performers
Stand-ins