History
Zanth was one of the three Time-Keepers, created by the very last director of the Time Variance Authority from the previous reality just prior to the heat death of that universe. The first attempt resulted in the creation of the Time-Twisters, who were flawed and destroyed numerous realities. Due to the intervention of Thor, this reality was split into two: one where the Twisters lived and one where they were destroyed. In the reality in which they were destroyed, He Who Remains created the Time-Keepers to protect time.[1]
He and the other Time-Keepers were eventually all annihilated by Kang.[2]