Ohtonen studied film acting at in
Tampere during years 2008–2009. After that, he studied at the Department of Acting at the
University of Tampere and graduated with a master's degree in Theatre Arts in 2015. After graduating, he has worked as a freelance actor. Ohtonen's acting television roles include ''
in 2018. The following year, he appeared in first season of the Finnish crime drama series All the Sins and provided the voice of the Finnish version of Big Brother
reality television show. In 2020 he portrayed Jere in the Finnish television series . He also appeared in the medical series Syke''. In 2022, Ohtonen appeared again in the third season of Finnish crime drama series
All the Sins. He also appeared in the historical epic series
Vikings: Valhalla. In 2025 he could be seen in the Swedish
Disney+ original historical drama series
To Cook a Bear. That year, he was cast as
Jesus Christ (replacing
Jim Caviezel) in the
Mel Gibson film
The Resurrection of the Christ: Part One, the sequel to the 2004 film
The Passion of the Christ, and commenced filming in the role in October 2025 in Italy. ==Personal life==