R. Dorothy Wayneright is a character in the anime Big O. The R. in her name is for Robot, she is modeled after the original Dorothy by Timothy Wayneright.
Although she openly states on several occasions that she does not appreciate Roger Smith's style, she respects his professional skill enough that she places herself under his protection. Throughout the series she continually drops hints that she has an ulterior motive for doing so, much to Roger's consternation.
Throughout the series she slowly seems to develop a more human personality, including adopting a kitten, and buying Roger a Heaven's Day gift.
In the end, Roger, who apparently has issues with having a relationship with an android, gives in, and puts his arm around her in the final scene.