Roland was a robot created out of a vacuum cleaner by The Evil Dr. D when he was a kid. And to this day, Roland serves as his lackey. While Roland is loyal to him, he thinks he's a bit of an idiot. He's very sarcastic, constantly second guessing Dr. D's evil plans, and also has a humongous crush on Melody. 

I acted as Roland throughout all 12 episodes, but I'm not entirely sure on what voice I'd like from him. So, if you've got an idea on a voice, I'm all ears! :D