Rhys showed romantic interest towards Sylvia Tilly during the party on Discovery, but his advances were quickly rebuked due to Sylvia being in her "musician phase" (DIS: "Magic to Make the Sanest Man Go Mad")
Just before Discovery encountered the sphere lifeform, Rhys took part in a staff meeting of senior officers in Captain Christopher Pike's ready room to discuss the Red Angel phenomenon (DIS: "An Obol for Charon")
Rhys disabled a shuttle believed to be piloted by Spock by firing a class-five torpedo at it and detonating it one hundred meters before impact. The shuttle was brought in by tractor beam. In the shuttle bay, it was revealed that the shuttle has been piloted by Philippa Georgiou. (DIS: "Saints of Imperfection")
Rhys is seen sparring with Commander Airiam through her POV memory storage. Although being struck in the chest by Airiam's front kick. He showcases his martial arts skills by counter-attacking with a hammer kick. (DIS: "Project Daedalus") He later attended Airiam's funeral. (DIS: "The Red Angel")
Rhys was among the crewmembers who volunteered to stay on the Discovery, accompanying the ship and Michael Burnham into the 32nd century, to elude Control, with no change of return. He was afterwards presumed dead by Starfleet, based on the testimonies of the USS Enterprise senior officers. (DIS: "Such Sweet Sorrow", "Such Sweet Sorrow, Part 2")
- "Choose Your Pain" (Season 1)
- "Magic to Make the Sanest Man Go Mad"
- "Si Vis Pacem, Para Bellum"
- "Into the Forest I Go"
- "Despite Yourself"
- "What's Past Is Prologue"
- "The War Without, The War Within"
- "Will You Take My Hand?"
- "Brother" (Season 2)
- "New Eden"
- "Point of Light"
- "An Obol for Charon"
- "Saints of Imperfection"
- "The Sound of Thunder"
- "Light and Shadows"
- "If Memory Serves"
- "Project Daedalus"
- "The Red Angel"
- "Perpetual Infinity"
- "Through the Valley of Shadows"
- "Such Sweet Sorrow"
- "Such Sweet Sorrow, Part 2"
Gen Rhys is a highly skilled martial artist, played by Patrick Kwok-Choon.