Reece Drake serves as the older sister to Zoe Drake and the assistant to Dr. Spike Taylor at the D-Lab. She crafted the Dino Holders, essential devices enabling the D-Team to summon and communicate with dinosaurs, showcasing her technical skill. Her appearance features long blonde hair, purple eyes, square-framed glasses, a green top, brown miniskirt, white lab coat, and dark red high heels; she becomes unrecognizable without her glasses.

Her Japanese name, Riasu Tatsuno, uses kanji for "dragon" (竜) and "field" (野), while "Drake" similarly references dragons. An alternative Taiwanese name is Liz. Personality-wise, Reece maintains a quiet, monotonic demeanor and rarely shows overt emotions, but exhibits sternness when questioned or annoyed, sometimes holding grudges, as noted when Rex reminded Max of a past lab incident.

She remains a stabilizing presence at the D-Lab throughout the series, holding a pilot's license and periodically upgrading the Dino Holders, such as improving their card-display capabilities later on. In the DS game, she develops the DinoShot device and provides story updates to the player. During the Spectral Space Pirates arc, she initially stays at the D-Lab with Rod and Laura before being taken hostage by Seth and his Cryolophosaurus.

Trivia includes her love for cake, an established lack of romantic history, and physical strength exceeding Dr. Taylor's, demonstrated when she effortlessly restrained him. Zander develops romantic feelings for her, though her reciprocation remains ambiguous due to her failure to recognize him without her glasses.