Keenser is a skilled Roylan engineer and was the first of his species to serve Starfleet. Despite his short stature compared to Humans, Keenser is considered abnormally tall for his race. He is also has skills with dealing with wildlife, being even able to tame a wild Hengrauggi. In the J. J. Abrams Universe, he worked as Scotty's assistant in an isolated Federation outpost on ice planet Delta Vega, of the Vulcan System. He would later join the USS Enterprise crew of that universe under the command of James Kirk.