He was very loud, menacing, and really a scary little guy.

They made it so obvious he became convinced the scary guys were always right behind him, at his shoulder.

Then he suddenly realized no, I'm the scary guy.

If they wanted to protect me from the scary bad guys, I was totally on board with that plan.

He is Yasuaki's best friend and a very scary guy if angered.

I opened the door and invited the big scary guy in.

No, my recommendation is, change the subject to what a scary guy your opponent is.

Suddenly, a big scary guy with a knife leaps out of nowhere and starts to attack you.

Everyone was treating Hudson like he was a very scary guy.

But his appearance was also intended to get across another message: he's not such a scary guy.