Walton Goggins's character was a Ronald Reagan-esque actor who did commercials for Vault-Tec under the impression that he and his family would get a spot in one of the company's vaults. Instead, he was left outside to die and after "ghoulifying," he keeps a chip on his shoulder against Vault-Tec. Maybe he learned that the vaults weren't havens but unethical human experiments, so he turned to drug abuse to numb the pain of knowing he encouraged people to trust the company, shedding his pre-War identity to become the fictional cowboys he always played.