Abdon was a member of a pink-skinned and a hairless humanoid species with a ridged scalp. Abdon served as a Starfleet engineer that was assigned to Deep Space 9 in the 2370s under Chief Miles O'Brien. He was part of the swing shift.
In 2373, O'Brien ordered the swing shift, including Abdon, to run calibration tests on all 64 of the station's inertial couplings, within a day. He was later assigned to the cargo bay with fellow officer Nori. (DS9: "The Assignment")