So I made an observation a couple of years ago, and internally I shrugged it off. I was reminded of this particular incident after viewing some of HotDiggedyDemon's latest work. Also, as of late, his head seems to have inflated with some of his badger-like responses to criticisms, and I like to do douche-bag checks on authors. :D
Now as I said, I originally shrugged this off, but now I want you the people, Newgrounds, to be the judge for me.
The original character design was pretty specific. A disfigured toddler, with a Neanderthal eyebrow ridge, inverted eyes, mullet & bangs, and jutting chin.
I now present you with the following image. Please discuss.
JakBaronKing
Most likely you two have similar wave-lengths in humor, thinking, and artistic style.
I highly doubt plagiarism is involved.
El-Cid (Updated )
I would argue that his character designs/style (something he's proud enough of to charge you money for--seriously check his site out), is very distinct. Notice all his characters tend to have egg heads and huge circular eyes. And then this one came along.