Michael Hollick - Trakt

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

Characters and Voice Actors - Grand Theft Auto IV

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

An old Tweet but I thought it'd be interesting to share nonetheless. Niko's voice actor confirming that he's Serbian : r/GTAIV

Niko voice actor earned only $100,000

Niko Bellic - Saints Row: The Third

Voicebox 360 The New Yorker

Patrick McReary GTA 4 Characters, Bio & Voice Actor (GTA IV, TLaD & TBoGT)

Niko bellic as josh Feinman by Carlogutierrezjr on DeviantArt

GTA 4 Characters and Voice Actors - (Grand Theft Auto IV Voice Actors)