A resident of the remote and ephemeral Velvet Room, Elizabeth works for Igor, the proprietor of the room and the man who helps humans unlock their Personas. Elizabeth assists him in particular with the compendium of Personas, and she slowly but surely connects with the main character in Persona 3. Despite her commitment to her duties to the Velvet Room, Elizabeth is interested in the outside world as well, connecting with P3’s hero as he shows her other soceties. If she falls in love with the protagonist, she abruptly ends the relationship, refusing to abandon her duties to stay with him.
In Persona 4 her role is replaced by her older sister, Margaret. In Arena, Elizabeth acts as a secret boss, similar to Akuma in Street Fighter and eventually unlocks as a playable fighter. Her persona, Thanatos, is one of the most powerful Pesona fusions in the series, making her a tough boss, though that’s toned down a bit for her playable form.
Her playstyle: Elizabeth is much like Akuma of Street Fighter fame: a glass cannon that's devastating when used correctly. Her HP might be quite low in comparison to other fighters, but if you slip up when she's in range, you're guaranteed to eat a painfully-long 50+ hit combo thanks to her Tarot cards and Thanatos' crazy lasers.
Watch the tutorial video for the character here!