Callan Grayne Callan Grayne was a Human male who served in the Republic Army during the Great Galactic War with the Sith Empire , and later became a general in Republic Strategic High Command during the subsequent Cold War . As the Galactic War broke out with the Empire at the end of the Cold War , Grayne was sent to the icy planet of Hoth to take charge of the Republic offensive there . While coordinating the Republic Military on the planet , Grayne enlisted the aid of the Jedi Knight known as the Hero of Tython , and later assigned Sergeant Fideltin Rusk to the Jedi on the order of fellow High Command member Durant . Biography . A Human male , Callan Grayne joined the Republic Army sometime after 3665 BBY and was placed in a squad that included the Chagrian Fideltin Rusk . The two served together for some time during the Great Galactic War with the Sith Empire , fighting in engagements such as the Geonosis campaign , in which they worked alongside a Human named Durant . During Grayne ' s time with the squad , he was injured in battle and lost his entire left leg , though doctors were able to fit him with a convincingly life - like prosthetic . The war ended in 3653 BBY with the signing of the Treaty of Coruscant , and during the subsequent Cold War Grayne became a general in Republic Strategic High Command , the highest level of command within the Republic Military . In 3642 BBY , Grayne was dispatched to take control of the Republic military forces on the planet Hoth , which was becoming the site of a three - way battle between the Republic , the Empire , and the White Maw pirates . All three factions were fighting for control of the ruined starships and prototype technology that had been scattered across the planet ' s surface since the Battle of Hoth in 3665 BBY . Arriving in orbit , Grayne was alerted to the presence of several Imperial weapons platforms on the edge of Crescent Canyon , which was located only a short distance away from the Republic ' s Aurek Base on the west edge of the Icetromper Wastes . Learning that two Jedi Knights , Leeha Narezz and the Jedi known as the Hero of Tython , had commandeered the 301st Infantry for a covert mission , Grayne contacted the Hero . As General Var Suthra had spoken highly of the Knight ' s military prowess , Grayne requested that the Jedi help the Military in return by destroying the emplacements and eliminating the threat they posed . A short time later , Grayne learned that Rusk , now a sergeant in the 301st , was about to attack a White Maw base in the Glacial Fissure region as part of the Jedi mission , and he ordered Rusk ' s squad to destroy several nearby munition dumps and thereby weaken the White Maw . After the Jedi completed the mission , Grayne spoke with fellow High Command General Durant , and the two decided to rotate the 301st Infantry back to the Republic capital of Coruscant and send the 88th Armor in its place . However , Durant also decided to indefinitely assign Rusk to the Hero in order to aid the young Knight , and Grayne requested a meeting with Rusk ' s squad and the Jedi at Aurek Base . The General relayed Durant ' s orders to Rusk after a brief reminiscence of their time serving together , and then returned to overseeing the battle against the Empire on Hoth . Personality and traits . Callan Grayne had dark skin , brown eyes , and black hair . A capable soldier and military leader , Grayne was determined to make use of every resource available to him and was perfectly willing to compromise with the Jedi , as long as he received military aid in return . As a result of his service during the Great Galactic War , Grayne sported a prosthetic left leg . On Hoth he wore gray - , white - , and maroon - colored combat attire suited to the cold weather . Behind the scenes . Callan Grayne first appeared in " " , a video game released by BioWare and LucasArts in 2011 , in which he is a recurring character in the Hoth storyline for the Jedi Knight class . Grayne contacts the player in the mission " Suicide Squads " and requests aid for destroying nearby weapons emplacements , and Sergeant Rusk contacts the player in the mission " Position of Power " with an additional objective of targeting munitions dumps . Grayne finally appears in person at the end of " The Price of Victory , " in which he assigns Rusk to the Knight and thereby grants the player his or her fourth companion character .