Mark Ullod is a Spanish actor and voice dubbing artist, primarily known for his work in the Catalan-language versions of animated series and films. He began his professional career in dubbing at the age of twelve and as a stage actor at seventeen, establishing a foundation in performance from his youth.

Ullod is most recognized for his long-standing association with the long-running anime series Detective Conan. He was the original Catalan voice for the character Kogoro Mouri, the bumbling yet famous private detective and father of the protagonist Ran. His tenure in the role began from early in the show's Catalan broadcast. He later returned to the franchise to voice Kogoro Mouri in two of the theatrical films, Detective Conan: The Scarlet Bullet and Detective Conan: The Bride of Halloween, marking a continuation of his contribution to the character in the franchise's cinematic releases.

Beyond his prominent role in Detective Conan, Ullod's voice work spans a variety of other anime and animated productions. In the fantasy adventure series Ranking of Kings, he provided the voice for the character Dorshe, a loyal servant to the royal family. His other notable credits in anime dubbing include the role of Jimbei in the Catalan version of One Piece. He has also lent his voice to feature-length animated films, such as the character Maui in the Catalan dub of Disney's Moana.

In addition to his extensive dubbing career, Ullod has also appeared as a live-action actor. He has taken on roles in Catalan television series, including a part in the historical drama Barcelona ciutat neutral and a character named Gerard in the long-running TV3 serial Com si fos ahir.