Tuomo Ruutu (born 1983), Finnish professional ice hockey forward
Additionally, Kero One has kept busy collaborating with acclaimed artists from all over the globe like Talib Kweli, Aloe Blacc, Tuomo (Finland), Mark Farina, Ben Westbeech (UK), DJ Deckstream (JAPAN), David Choi, Fashawn, Shing02, Dumbfoundead, The Sound Providers, DJ Mitsu (JAPAN), Abstract Rude and many others.
Jarkko Ruutu (born 1975), Finnish professional ice hockey player, brother of Mikko and Tuomo
Tuomo Mannermaa (b. 29 September 1937 Oulu, Finland) is professor emeritus of ecumenical theology at University of Helsinki.