Th'Shelas was an Andorian thaan in the late 24th century.

As of early 2381, th'Shelas was serving his medical internship aboard the USS Enterprise-E, under Doctors Beverly Crusher and Tropp. During the Borg Invasion of 2381, th'Shelas assisted Tropp in surgery on the severely wounded. Crusher had to stop their futile efforts on a Bajoran engineer so they could move on to a wounded Tellarite officer. (ST - Destiny novel: Mere Mortals)

Following the invasion, th'Shelas attempted to relieve Crusher from her duties in the infirmary at the iy'Dewra'ni refugee camp, though she refused his efforts. (TNG novel: Losing the Peace)

USS Enterprise-E medical & counseling personnel
Chief medical officers	B. Crusher • Stevenson	Ship's counselors	D. Troi • T'Lana • Hegol D.
Medical personnel	Amavia • J. Jurot • B. McGlynn • Meldok • A. Mimouni • E. Neil • A. Ogawa • Ojibwa • Po • Rymond • th'Shelas • Tropp • S. Weinstein • Zseizaz
see also: engineering personnel • operations personnel • pilots & flight control personnel • security & tactical personnel • sciences personnel • senior staff • miscellaneous • unnamed