Petra Leyte (ペトラ・レイテ) is a maid of the Roswaal Mansion and a member of the Emilia Camp.
Petra has long, reddish brown hair that extends to her shoulders along with cyan eyes. She wore casual clothes when she lived in the village but she switched to a maid uniform for her job. During the month that Subaru was at Priestella, her hair and height grew longer, with her mentioning that she would grow even more by the time he returned from the Pleiades Watchtower.
Petra is a kind girl. She was originally a little submissive, usually just going along with what others said, however after the incident at the Sanctuary she becomes bolder and learns to express her own opinion more. She also develops feelings for Subaru after he saved her during the Wolgarm incident. Before becoming a maid, she used to want to be a seamstress at the capital.
Magic User: Petra has a water affinity, but she's not good with magic. Emilia tried to teach her, but due to Emilia´s teaching methods relying on instinct she now gets taught by Ram.
Self-Defense: Frederica gave her lessons so she can defend herself.
- According to the author, Petra's birthday is February 14.
- According to the author, Petra will be featured in arc 8.