Gonn was a HemQuch Klingon alive during the 2260s.

In 2269, Gonn was working as a security guard aboard the dilithium mine in Beta Thoridar's asteroid belt when he greeted Bekk Jurva when she came aboard to help them restore order to the mine. During her arrival, Gonn warned Jurva not to call Section Chief Targ, son of Targ by his given name as he didn't like it. Later, after Jurva had killed Targ, Gonn and Goroth attacked her as an act of revenge, but they were both killed in the fighting. (ST novella: The Unhappy Ones)