Santiago Avida was a famous painter. His most sold paintings were that of cats, although he sold those under an alias. Under his own name he would rather paint paintings with deeper thoughts than just cats. After Bert Riggs convinced all others to turn themselves into robobrains, he resided within Vault 118 as one. Since then, he has developed a crush for Gilda Broscoe, and has had an affair with her for over "a few dozen years".