Ensign Gene was a male Human Starfleet officer who served on the USS Discovery in the mid-23rd century. Gene was among the crewmembers who volunteered to stay on Discovery into the 32nd century, presumed dead by Starfleet.
After arriving in 3189, Gene used a shovel to clean up the bodily remains of Leland, whose body was stomped into "gooey bits" inside the spore cube by Philippa Georgiou after eliminating the Control nanites that had taken over his body. While working, Commander Jett Reno referred to him as "Hazmat" and described him as "cleaning up aisle five." He replied, "My name's Gene, actually," to which Reno replied dismissively, "I've already forgotten that." (DIS: "Far From Home")
Gene was portrayed by Adrian Pavone, incorrectly credited in the episode, and the character was listed in the credits as "Ensign Hazmat."