VGFacts

Law (Tekken)

Morrigan Aensland (Darkstalkers)

Nathan Vargas (Fallout 3)

Oleg (Saints Row)

Pac-Man (Pac Man)

Q (Star Trek: Borg) XP

Raphael (Pick your TMNT game)

Slaigh MacCooper (Sly Cooper)

I noticed that I could fill the S part with Sly Cooper characters.

Tony Hawk (Tony Hawk)

Ubiquitous Fantastic Ride (IIDX)

Viewpoint - an obscure neo-geo game harder than battletoads

World of Warcraft - that one game you've probably played a lot.

X-Files - yes there was actually a pinball machine based off this.

Yog-Soggoth (Sam and Max)

Zoo Keeper