Before he made it big in movies and TV, this handsome celeb made his TV debut in a Safguard deodorant soap commercial directed by Robert Sallin in 1975. SPOILER ALERT: If you still want to guess who he is, scroll down and watch the video before we give it away. For those of you who like to read the last page of the book first, it’s none other than 25-year-old Tom Selleck alongside Patti Deutsh, Teri Garr, and Penny Marshall. Who doesn’t love Magnum PI?