Was just scrolling through the YouTube with the kid for a minute and found this. It looks like the work of Fred Calvert's studio, which also did the animation for Steve Zuckerman's "I in the Sky."
Did I mention I turned the chorus, "Capital I, Capital I. Capital I, Capitalllll I" into my ringtone? No? Maybe because it's one of the nerdiest things I've done lately.
Could be that they were making a play on "character actors"?