Years before he became known for darker horror and sci-fi content, Zachary Quinto appeared in one episode of the nostalgic Disney Channel series Lizzie McGuire. While the series followed the awkward coming-of-age story of Lizzie McGuire (Hilary Duff), the show became known for featuring many celebrities and young actors, such as Frankie Muniz, or a popular singer, such as Aaron Carter. Quinto's role stands out for while he played Mike in one episode of Touched By An Angel, he has stayed away from teen series.
https://screenrant.com/zachary-quinto-lizzie-mcguire-character-explained/