Tellah has a long white beard and white hair. His in-game sprite and SD artwork depict him wearing round glasses, a high collared, long purple coat and purple trousers. His Yoshitaka Amano artwork expands on this by giving the inside lining of his coat a striped pattern, stars on his shirt, blue and red patterns on his trousers, and a fringe trimming on his coat.
Tellah is passionate but quick to anger. He loves his daughter Anna and only wishes to protect her from what he thinks will harm her. He is crass and sometimes downright rude, but determined, and can work alone as well as working alongside others.