
...known as Sheldon Alpha Five.
The Big Bang Theory Season 3, Episode 11

Alpha?
Westworld Season 2, Episode 8

When I fail to open this and you succeed,
it will establish you as the ALPHA male.
The Big Bang Theory Season 2, Episode 9

The answer is minus eight pi ALPHA.
The Big Bang Theory Season 1, Episode 13

Alpha 3 positioned."
Money Heist Season 1, Episode 4