
Quick answer — Haruka Okamura voices Ewen Egeburg in SPY x FAMILY, Aoi Okamoto in The Dreaming Boy is a Realist.
Haruka Okamura voices Ewen Egeburg (SPY x FAMILY), Aoi Okamoto (The Dreaming Boy is a Realist).
Ewen Egeburg is voiced in Japanese by Haruka Okamura.