Hilgenbrink polished his creative craft, studying Shakespeare intensively in London and has starred in multiple theatrical pieces including A Midsummer's Night Dream, Chicago, and Oliver. After many successful performances in New York and London, Tad ventured to Los Angeles giving himself only two weeks to make it or go home. After winning his first major roles as well as the Showcase Showdown on The New Price Is Right, Tad decided to stay.
He is openly gay although at this time has no partner.