Board Thread:Speculation House/@comment-68.13.203.44-20150925014952/@comment-18396318-20150925205454

RWBY characters are meant to allude to only one character. They may draw inspiration from others, and they can act as a sort of substitute for another character's relationship, but that doesn't make them based on another character. Ruby, Weiss, Blake, and Yang are not from the Wizard of Oz.

That said, there are allusions to the Wizard of Oz beyond Ozpin and Glynda. I believe we have confirmation that Ironwood is the Tin Man, but if not, we're fairly certain. Zwei is almost definitely based on Toto, and early on we thought Qrow could be the Scarecrow. Ozpin being based next to the Emerald Forest is a reference to the Emerald City.

And while Ruby is not Dorothy, she does fill substitute roles. She carries Zwei around with her, was rescued by Glynda, and had a wish granted by Ozpin. She may substitute for the ruby slippers at some point, based on her name. But she's not Dorothy, she's Little Red Riding Hood.