Solak was the Vulcan executive officer and science officer assigned to the USS Grissom (NCC-638) in 2285. (Star Trek: Grissom: "All Rumours of Wrath, Past and To Come") His previous assignment was aboard the USS Reliant.

Solak died in 2285, shortly after the Grissom encountered the renegade Deltan Terlis at Cinera Base in the Epsilon Mynos system. Terlis somehow separated Solak's katra from his body, ripping the will to live from Solak, which, in turn, willed Solak to allow himself to die. (Star Trek: Grissom: "Oderint dum Metuat")