Jason Zumwalt (Roman Bellic voice actor) responded my message lol : r/GTAIV

Niko Bellic - Wikipedia

Voiced Actor (Niko Bellic) addon - S.T.A.L.K.E.R. Anomaly mod for S.T.A.L.K.E.R.: Call of Pripyat - ModDB

Niko Bellic, GTA Wiki

How much are the voice actors in Grand Theft Auto V paid? - Quora

The fact that Niko Bellic's voice actor has less than 500 followers on Instagram make me sad : r/GTA

I really hope niko make an appearance in GTA VI, I'm not sure how they'll implant it, but it'll be cool for the nostalgia : r/GTA

Niko Bellic Voice - Grand Theft Auto IV (Video Game) - Behind The Voice Actors

Niko Bellic, Dorkly Wiki

VGF Gamers on X: Meet Michael Hollick. As well as appearing on Law & Order, he's also the voice of Niko Bellic in Grand Theft Auto 4. / X

Mallorie Bardas GTA 4 Characters, Bio & Voice Actor (GTA IV, TLaD & TBoGT)