- "But back to my convo with Shawna, she went on and on about that stupid Clay Parker guy that left her hanging. Of course she still loves him… he’s a jerk and he’s dumb and I am smart and awesome and hello, Friend zone, so nice to visit again."
- —Cisco Ramon[src]
Clay was at some point locked up in Iron Heights Prison before the S.T.A.R. Labs particle accelerator explosion. Prior to being an inmate, he worked for Marcus Stockheimer. Sometime later Shawna Baez broke him out. Latet, Clay gives money to Marcus. When Shawna has a gun aimed at her head, she doesn't stay still, showing her hand. Suddenly the police show up and Shawna freaks as Clay is shot. She then teleports her and Clay away. Later, when Barry Allen caused a short circuit in an underground way and Shawna cannot use her powers, Clay abandoned her and exited alone. His current whereabouts after his escape and abandoning Shawna are unknown, he has not been seen or mentioned since. 
- Deception/Manipulation: Clay is able to fool Shawna and trick her commit to crimes.
Chronicles of Cisco
The Chronicles of Cisco
- (indirectly mentioned)