"Soup Can Harry" is a character mentioned in Fallout 4.
"Soup Can Harry" was the 87th candidate interviewed for the position of Vault 114's overseer. He refused to provide his real name to Vault-Tec's interviewer, and during the interview went on several bizarre rants about the government and personal freedom, at one point stating that he eats Abraxo cleaner. These normally undesirable qualities made him a perfect fit for the Vault's social experiment, and he was quickly offered the position. After being offered the position he quickly responded that he won't wear a tie or pants. 
Soup Can Harry is mentioned only in Fallout 4.