Joonathan Kettunen is a Finnish voice actor, singer-songwriter and recording engineer who provides voices for the Finnish dub of Thomas & Friends. He has also sang several songs the series.
Other Finnish dubbing credits include "Special Agent Oso", "DuckTales" (2013), "Kung Fu Panda", "Sonic Boom", "Fanboy and Chum Chum", and many more.
- Working Together Again
- Searching Everywhere
- It's Gonna be a Great Day
- Monsters Everywhere
- Let's Be Brave
- Our Tale of the Brave
- Both he and Petrus Kähkönen have provided voices in the Finnish dub of "The Secret Life of Pets".
- He, alongside Tim Kreuer (who also voiced Jack) and Jürgen Theuns voiced Fanboy from "Fanboy and Chum Chum" in their respective languages.