John Gavin: John Gavin. Actor: Psycho. John Gavin, the American film and TV actor, businessman and diplomat who was Ronald Reagan's first Ambassador to Mexico, was born Juan Vincent Apablasa in Los Angeles, California.
The future "Jack" Gavin was a fifth-generation Angeleno, the son of Delia Diana Pablos and Juan Vincent Apablasa, and was of Mexican, Chilean, and Spanish ancestry, a descendant of early landowners in Spanish California and the powerful Pablos family...