Basil Hagen

Early Life
Basil lived an average life until one day auditions for a teen sitcom called Average Joes arrived in Gotham City as Basil decided to audition for it. He ended up getting the role and starred alongside faces such as child actress Mary Dahl, future scream queen Sonya Fuller and former Grey Ghost star Simon Trent. That one show ended up giving him a rise in stardom, becoming a famous star, appearing in various movies.

Addiction
One day, Basil got into a car accident, terribly disfiguring his face. Basil thought his career was over until he was visited by businessman Roland Daggett. Daggett offered Basil a drug called Clay, which could heal his face and grant him temporary shapeshifting abilities, at the cost of him having to commit crimes as the mysterious False Face. Basil soon became addicted to the drug, constantly hungering for more, until one day Roland decided to cut ties with Basil.

Clayface
Basil, not wanting to let go of his career and the drug, breaks into one of Daggett's factories and started to steal a bunch of Clay. However, one of Daggett's enforcers, Gearhead, located Basil and threw him into a vat of Clay. Basil re-emerged, as a massive hulking monster made out of Clay as he targeted Daggett for revenge. The Batman ended up stopping him from getting his revenge as Basil became a recurring menace for the citizens of Gotham.