Anyone who has seen a movie or watched TV anytime since 1985 has most likely seen John D'Aquino on screen. Most notably, depending on your generation, were roles on "21 Jump Street,""Quantum Leap," "Seinfeld," "Third Rock from the Sun," "That's My Bush," "Hannah Montana," "Monk," "CSI," "Dexter," "NCIS" and "Xena: Warrior Princess" as Ulysses.