Mark Giambruno is a 3D artist, art director and writer. As an early employee of Mondo Media, he worked on many of their game projects and contract game cinematics. He also voiced the Lifty & Shifty characters for the popular internet show Happy Tree Friends, a role he now shares at times with Kenn Navarro. He is the author of two books on 3D graphics and has also done the English rewrite on over 40 US-licensed manga and light novels.