Dr. Owen, a paleontologist and close colleague of Spike Taylor, bubbles with childlike enthusiasm, especially when discussing dinosaurs or expressing affection toward Ursula of the Alpha Gang. He discovered infant Rex inside a mysterious pod beneath a Barosaurus skeleton at New York’s Museum of Natural History, adopting him before entrusting the boy to the Taylor family for stability amid his own globetrotting scientific career. Collaborations with fellow researchers like Patrick during excavations in Mexico and Hollywood frequently intersect with his comically persistent courtship of Ursula, including proposals via dinosaur-bone rings and a Hollywood stunt where a prop costume briefly disguised him as a dashing actor.

Determined to reunite Rex with his biological parents, Dr. Ancient and Dr. Cretacia, Owen’s plans derail when Spectral Space Pirate Gabbro teleports the Taylor house. He later aids in defending the D-Lab against Seth’s Cryolophosaurus and witnesses the pirates’ defeat. Through these trials, he prioritizes Rex’s happiness, gifting him a dating guide for "dinosaur nerds" and entrusting the D-Team with rare dinosaur cards—Ace the Carnotaurus and Paris the Parasaurolophus—unearthed in Alberta.

Balancing scientific curiosity with relentless, if whimsical, romantic overtures, Owen navigates professional partnerships and personal setbacks, steadfast in fostering Rex’s well-being despite fractured attempts to forge a lasting family dynamic.