Shaun Geoffrey Christopher

Commander Sean Christopher was a 21st century astronaut and founding member of Starfleet. He was assigned to orient the first class of cadets at the new Starfleet Academy. During the orientation, however, a timeship from the future appeared, containing Voula, a Vulcan starfleet officer from the future. She warned him of an impending attempt to change history by a Romulan named Simeon. The two had to work together to defeat the Romulans and preserve history. They did so by beaming aboard the Romulan ship with a host of tribbles. (ST performance: Star Trek Live)

He was the son of air force pilot John Christopher, and followed in his footsteps, first becoming a pilot before going into space as an astronaut. (ST performance: Star Trek Live)