Who is Lieutenant Colonel Grady from Fail Safe and what is their importance?

Lieutenant Colonel Grady is a pilot and the commander of the Group 6 Vindicator bombers. He loves flying and is a disciplined, dutiful serviceman. When he receives the order to attack Russia, he follows all the required protocols to verify it and proceeds without hesitation. Grady shows extraordinary flying skills in avoiding the final Soviet attack, and he drops the bombs knowing their explosion will also mean his death and that of his crewmen.