Sharpe was recruited into the Clockwatchers by Clock King. He was part of the attack on the Teen Titans, attacking Prysm. Sharpe was eventually incapacitated and taken away pending trial, all the while threatening to sue if anyone lost even a shard of his body.
Sharpe is made out of crystal, and is able to fire shards of crystals. He is also not harmed if one of his limbs is knocked off.