Damon Case was born in Exeter, England in 1026. He was raised by a religious family, and he lived his life devoted to the Lord and the meaning of the Word. Later in is life, Case joined a Crusade in 1068, Case died in battle and then became Immortal. He met the Bishop of Exeter, Leofric, who became his teacher and Damon became a champion of The Game. He dedicated his life to the challenge of the Game and taking of Quickenings. Friend or enemy, good or bad, made no difference, only the ritual of battle mattered. Damon, however, took no pleasure in what he felt he had to do, he believed that the Game was the only reason for his existence. When he took the heads of other Immortals, he prayed for their souls, he was not evil, merely unimaginative and inflexible
In 1795 England, he met newly Immortal Jean-Philippe de Lefaye III in a tavern, a student of Duncan MacLeod. Case realized that Jean Phillipe was young, but Jean Phillipe challenged Case. Case refused the challenge at first, but the following day he ran into Jean Phillipe again and told him that he was now ready to fight, and they went outside. Duncan went to the tavern to look for Jean Phillipe and was told that he had left with Damon Case. Duncan left to go find his friend, and discovered his body beheaded. At the nearby church, Case was praying for Jean Phillipe's soul, Duncan went to the church and saw Case praying and was angry at the death of his student. Duncan challenged him to fight, but Case said to return in the morning if he still wished to fight. Duncan did not return to fight, realizing he had no real reason beyond his own anger.
In 1995 France, Case went to a circus seeking out the newly Immortal, and unsubtle Danny Cimoli. He challenged Danny to fight, but Danny refused as he was defenseless, having only learned what he was that week. He didn't even own a sword yet. Danny fled to Duncan MacLeod, who had been instructing him, and told him about Case.
Duncan went to talk to Case and told him to leave the boy alone, but Case already made the challenge. Damon Case challenged Duncan, but the police showed up as Danny Cimoli had called them, wanting to save MacLeod.
Case and Duncan renewed their challenge a few days later. He did not want to fight Case, but the man would not leave Danny alone, giving MacLeod no choice. The duel ended with Case disarmed and MacLeod gave him one last chance to leave off, another refusal and his head fell.