High Quality Content by WIKIPEDIA articles! Leonardo "Leo" Wyatt is a fictional character from The WB television series Charmed, portrayed by Brian Krause. A possible breakout character included in the writing initially as a love interest beginning in the seventh episode of the first season that initially set Phoebe and Piper quarreling and competing for his attentions, he appeared as a guest star in seven episodes of the first season and six episodes of the second season. Midway through the second season, he joined the main cast and appeared in all but 11 episodes for the rest of the series` run. All told, he appeared in 145 episodes—by far the most of any male character in the series, and the most of any character who wasn`t a Halliwell by birth.