Most often worshiped by sailors or people traveling by sea out of fear of her destructive powers, The Queen of the Depths is often referred to many names (The B•tch Queen, The Wavemother, the Stormgoddess of the Seas, etc). It is unimportant how one regards her, as she remains a capricious deity that will sink a boat on a whim or out of spite, known to be malicious, petty, greedy, and vain.

Umberlee is temperamental, evil, and malicious. She did not feel a moral obligation to honor any of her agreements or promises if the end result was not beneficial to her. That, and her desire for the valuables and excessive tribute, demonstrated her insatiable greed and cruelty. She was power-hungry and loved exercising it, toying with her worshipers. She fed her sadistic nature by destroying naval vessels and feeding shipwreck victims to her sharks while watching others drown.

She rarely favored individual mortals unless it benefited her in some way. Umberlee does not tolerate any one member of her clergy becoming famous and overshadowing the church or the goddess herself.