In my mind this is what an alpha, beta, omega, gamma and sigma male look like lol (based on movie characters and stuff)
Alpha :
Fargo is actually a great example of the dynamic between a "weak" Beta male (Martin Freeman) and a very "manipulative" Sigma male (Billy Bob Thornton) :
Omega :
I think most of GAF falls into this category (AKA people who post on forums to seek greater understanding, but also tend to be loners. Likewise, we read too much information on the internet and have hard nosed opinions.) I guess the takeaway for me, personally, is that Gamma males are genuinely passionate about certain things, sometimes niche, and are usually extremely capable at a select few things. At least that's how I feel as a hobby-musician who spends hours a week doing what I enjoy and being confident about it.
It's pretty hard for me to think of a single "Gamma" character, but Ethan Hawke in Before Sunrise gives me that vibe. He's kind of smart, kind of funny, kind of cool, but at the end of the night he's overall still just a random/average dude and the movie does a good job at presenting a Gamma males "forgettable" personality IMO :