Name of Youtuber who was popular circa 2009, he was teenaged with an aspergers persona?

… went on to appear in a mainstream film. Had a very stop start way of speaking in his YouTube vids. I want to look him up to see what he’s doing now… I can not for the life of me remember his name.

Help?

Fred? Annoying blond kid? Google YouTube Fred and you can’t miss him.

No, not Fred…

It just occurred to me to check my YouTube subscriptions. Found him. Daxflame.