I tweaked so much during the gameplay 'cause since I listened to the Masked Gentleman' s voice after have watched the flashback with Randall, I immediately recognized his voice (or at least I was 99% sure it was the same voice actor)

So imagine me like a psycho conspiracy theorist yelling "I KNOW. I KNOW IT'S RANDALL, RANDALL DIDN'T DIE THEY NEVER FIND THE BODY I SWEAR TO GOD IT'S THE SAME VOICE I SWEAR I'M SURE"

and the more we continued the game, more hints sustained my theory, and when finally The Masked Gentleman revealed himself I exploded because I was right all along