Masato Niwa was ? in Skip and Loafer as 'Mitsumi's Father (voice), Satonosuke (voice), Narumi's Father (voice), Noguchi (voice), Middle-aged Man (voice)'.
Masato Niwa was ? in The aquatope on white sand as 'Teacher (voice), Regular visitor (voice), TV host (voice), Sales Department staff member (voice), Staff visitor (voice), Customer service staff (voice), Yamahara (voice), Staff member (voice)'.
Masato Niwa was ? in Vinland Saga as 'Mord (voice), Member of Askeladd's Mercenaries (voice), Soldier of Jabbathe's Forces (voice), Resident of Gorm's Village (voice), Viking of Thorkell's Troops (voice), Messenger (voice), Soldier of the English Army (voice), Soldier of the Danish Army (voice), Villager (voice), Thegn (voice), Wild Dog (voice), Dead Man (voice), Farmer (voice), Ylva's child (voice), Retainer (voice), Merchant (voice), Guest (voice), Soldier (voice)'.
Masato Niwa was ? in DRAGON PILOT: Hisone and Masotan as 'Ground Crew Member A (voice), Iruma Air Base Ground Crew Member (voice), JASDF Officer A (voice), Spotter A (voice), Ground Control Intercept Officer (voice)'.
