Magna Tolvan was a human female with blue eyes, white hair, and light skin. The studious Tolvan dedicated herself to mastery of Imperial protocol, and in so doing, won high marks in technical and tactical engagement. She believed that though some were drawn to rules of authority simply for the chance to break them, others like herself, craved discipline in order to make sense of and control their own inner turmoil. For this, Tolvan was never lax in citing and applying Imperial regulations, often admonishing the efforts of those who failed at adhering to them, as "sloppy."

Well-versed in combat and survivalist skills, Tolvan was, for example, able to overcome, kill and skin the Defel Glahst Ombra, later using the latter's pelt as a disguise. Tolvan even managed to shoot down Sana Starros' Volt Cobra, using only a hand-held rocket launcher—and the element of surprise. In the aftermath of aiding Doctor Aphra's escape from Accresker Jail, Tolvan defected from the Empire to the Rebel Alliance, assembling and leading a highly-effective strike team known as Strike Team Misericorde.

With the Rebels, Tolvan was finally able to reach her potential for greatness.