Father in law of Fabio Leoni.
Grandfather of Virginia and Pietro Leoni.
He has a son, Walter, and a daughter, actress Rosanna Banfi.
When Lino Banfi was working as a showman in Italian theaters, is nickname was Willy Zaga. He changed it in Lino Banfi because Totò (Antonio De Curtis) told him: "Zaga? Doesi it comes from Zagaria? Change it, short names are funniest!"