Dattilo was born in Kankakee, Illinois, subsequently moving to West Palm Beach, Florida after his parents' divorce, where his mother became one of the first female editors for The National Enquirer.
He later moved to Los Angeles and at the age of 9, he began taking acting lessons with his sister, Kristin.
A short time later, he landed his first acting job in a re-curring role on HBO's Not Necessarily The News.
Along with his regular appearances on Days of Our Lives, he has had numerous guest starring roles including Saved by the Bell, CSI: NY, California Dreams, Doogie Howser, M.D., In the Heat of the Night, and Charles In Charge.
With an encyclopedia knowledge of the paranormal, Dattilo interviews top experts in the UFO/Alien universe and delves into his own alleged abduction by grey aliens in 1993.