Percy Jackson and the Olympians: Legends

Moros strongly resembles Thanatos and his mother in many Nyx; he has purple irises, grey skin, and prominent cheekbones. His long, white hair spills elegantly over an obsidian circlet, which is adorned with gnarled horns. He is bare-chested, and wears a black, patterned shendyt adorned with a gold cloth belt that terminates in multicolored tassels. There are numerous references to the Moirai in his design, most notably the giant needle he wields and the tiny pictures of thread-spinning tools on his belt. His gold armor is adorned with skulls, indicating his connection with death. Much like Thanatos, he wears a gorget around his neck and armor on his forearms. Both his portrait and his overworld model depict him as having very rigid posture, with his feet together and his arms folded behind his back.

Moros embodies misfortune, foreseeing the inevitable fate; even his name seems rarely invoked. However, his behavior contradicts this, as he personally exalts politeness, compassion, solemnity, and moderation. Being solitary, Moros is unaccustomed to others besides his sisters visiting him; he is socially awkward, treating everyone with formality and great cordiality, addressing Melinoë by the royal title of "princess". Though inwardly graceful, Moros is pleased when some defy fate, signifying more work for him when he needs to appear to deliver the new misfortune they suffer. Despite his admiration for Odysseus, he harbors no grudge. Moros remains analytical and calm, even when reminded of what happened to the Fates, maintaining composure by acknowledging the futility of holding resentment for the immutable.

Moros is the personification of doom, bad luck, and inevitability. A grim and rustic incarnation, he is the son of Nyx and is seemingly the only one out of his kin to maintain some connection or priviness to the designs of his older sisters, The Fates, due to his use of a large needle-like sword as his signature weapon. Moros only engages with others when they are "condemned".