Hey, It's That Voice!: Gazpacho is voiced by Dana Snyder, most famous as the voice of none other than Master Shake, as well as Todd, though Gazpacho seems to have carried over the mother issues from Todd. In addition, Shnitzel is voiced by John DiMaggio, who uses a voice very similar to the one he uses for Bender on Futurama.
To add a little to the first example, Dana Snyder sounds EXACTLY like Master Shake in this show, and it can be quite jarring to hear that voice in a kid's show. Of course, it also makes it about 400 times funnier, since Gazpacho is a Cloud Cuckoolander just like Shake, and you could totally imagine either character saying quite a few of the same lines.