Herm Gossett was a male Human civilian in the 23rd century. He was one of three partners in a lithium mining company established in 2263 on Rigel XII.
In 2266, the USS Enterprise visited Rigel XII to replace its lithium crystals. Like all successful lithium miners of that time, Gossett was very wealthy. Instead of the standard payment, Gossett and his partners Ben Childress and Benton wanted to trade for Mudd's women. Gossett met these women aboard the Enterprise, and became enchanted with them, eventually marrying one via subspace radio. (TOS: "Mudd's Women")
Herm Gossett was portrayed by Jon Kowal.
In the final draft script of "Mudd's Women", Gossett was described thus; "[He] affects a grenadier-style mustache… gaunt… with an aura of imperturbability." Gossett was also referred to as "a few years younger" than Childress.