Peter (voiced in Japanese by Yūki Tai and in English by Vic Mignogna) is one of the secondary main characters in the Book of Circus arc in the anime/manga Kuroshitsuji/Black Butler.

He is one of the first-string members in Noah's Arc Circus and does the flying trapeze act with Wendy. Like Wendy, he looks extremely young, but is very stunted in his growth and is much older than he appears. Unlike Wendy, he very much does not act his supposed age, and is prone to being irritable and rude, even violent at times. Wendy and Jumbo appear to be two of the people he cares the most about, being almost inseparable from Wendy and treating Jumbo with respect.

He has short, overly-fluffy blonde hair topped with a small green off-center hat, and he has light blue eyes, accented by green diamonds on the opposite side of Wendy's pink ones. His circus outfit consists of a double-ruffled high white collar, a puff sleeve white button up short-sleeved shirt, a lime green vest, dark green puff bloomer-style shorts with yellow star detailing on them, and open toe white tights.

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