He is always willing and enthused to give medical attention, assist with experiments, or engage in friendly bargaining. Ulaam is well liked and respected by his crewmates. He explains to Tress the use, mechanics, and history of various spores including Midnight Essence. Ulaam is heavily cosmere-aware and has an extensive knowledge of the aethers both on this planet and others. His jokes are often perceived as quite gruesome and, though extremely friendly, he lacks empathy and insight. Ulaam has a sarcastic, morbid sense of humor (offering literal hands when giving assistance). “ I always say, when trouble troubles you, keep a stiff’s upper lip! Or several. Ulaam claims to be the least dangerous thing on the ship after being accused of eating people by Ann, he clarifies that he only eats dead ones and compares himself to an earthworm or bacteria. He does not often attempt to mimic humans or other animals, resulting in a completely unique personality, even among others of his kind. Similar to how VenDell goes around making deals with people for their bones once they die, Ulaam attempts to make offers for organs and limbs such as Tress’s eyes, kidney, tongue, brain, hands, and toes. Ulaam speaks with a refined but excitable voice often adding 'hmmm?' to his questions. Hoid even claims that Ulaam is the best doctor he’s ever met. Ulaam, he is highly knowledgeable in medicine as he assumes the role of the ship’s surgeon. She finds the pure-black, pressed, buttonless suit more elegant than the uniforms her island's nobility wore. He dresses in a sharp suit (previously belonging to Hoid) of a style Tress is unfamiliar with. While aboard the Crow's Song, he maintains inhumanly sharp features, ashen grey skin, jet-black hair, and blood red eyes this is similar to a Dzhamarian from Sel.

Being a kandra, Ulaam has the ability to dramatically alter his physical form.

Tress cosmere