Characters Not To Confuse: Rorschach and Horshack

above: Rorschach

above: Arnold Horshack

In spite of their similar-sounding names, these characters are very different.

Rorschach is a vicious vigilante from the comic book (and now movie) The Watchmen.

Arnold Horshack is a character from the 70s situation comedy Welcome Back Kotter, known for saying "Oo oo ooo" when he raised his hand (pictured).

Not to be confused, indeed.