Clark Terrell

Clark Terrell was a line officer on active duty in the 23rd century. 

In 2233, Clark Terrell was born in Vancouver, British Columbia, Canada. (' e-novel ')

By 2265, Terrell was executive officer of the Archer-class USS Sagittarius, then its commanding officer three years later. (' novels: ' and )

In 2285, he commanded USS Reliant during its search for an appropriate planetary body on which to test the Genesis device. In the Ceti Alpha system, Reliant's scans found a planet that seemed suitable -- until they found it was a former class-M world whose orbit had changed, resulting in the extinction of all higher forms of life. Ceti Alpha V was also where James T. Kirk had exiled the surviving Augments -- including Khan Noonien Singh -- from the SS Botany Bay in 2267. 

Terrell was already captain of Reliant in 2275, where his officers called him "Jellybelly" behind his back, due to his rotundity. (Orion Press: "The Blue Rose")