Carlos Siller is a Mexican voice actor born on June 6, 1997, known for his work in Latin American Spanish dubs of anime series and films. He is also active as a dubbing director.

Siller is most recognized for his portrayal of the protagonist Shigeo "Mob" Kageyama across the entire Mob Psycho 100 franchise, including the main television series, its second and third seasons, and the special Mob Psycho 100 REIGEN: The Miraculous Unknown Psychic. This role is a cornerstone of his career.

His other prominent anime voice roles are extensive and varied. He voices Ryō Ishisaki in the 2018 Captain Tsubasa series, Tōya in Log Horizon: Destruction of the Round Table, and Jhin Syulargun in Our Last Crusade or the Rise of a New World. In film, he lent his voice to the character Noppo in the Netflix film Drifting Home. He also played Sui Takishima in the series S.A.

Siller's filmography includes leading parts in other major anime. He is the voice of Leonardo Watch in Blood Blockade Battlefront, Itona Horibe in Assassination Classroom, Leopold Vermillion in Black Clover, and Ryoma Echizen in The Prince of Tennis II. He also voiced Alexander "Sasha" Nikolaevich Hell in The Qwaser of Stigmata and Asuramaru in Seraph of the End.