Who are Mack Black, Dack White, and Zack Gray

Yes, It's me, Mack Black. You may know me from the WIDELY popular movie "The Woods", which is a part of the NSPCU, (Not So Premium Cinemtatic Universe), but I like to call it the "Mackiverse" It would be correct to assume that you'll see me at next year's Oscars.

Hi! I am Dack White, the less narcissistic spokesperson for Not So Premium Productions. My counterpart "Mack" might say he is vital to the company but members of our company know who really runs things.

I'm... I'm kind of just here