Many fans of Arrow will remember that during the second season, the introduction of the Suicide Squad featured the cameo of a certain Harley Queen, which was eventually cut from the episode. Since the scene was cut, featuring the voice of the classic character’s voice from the Batman: Animated Series, we have not heard anything about the character since.
According to Willa Holland, who plays Thea Queen in the series, confirms that we will most likely never see that character in the series, and that they had some grand ideas for the character when she told Flickering Myth.
“We had big plans for Harley, but I guess something came down from DC execs that told us to shut it down. I mean, we had that tease with the pigtails and the A.R.G.U.S. [prison] outfit but, we’ll never see it. We would love to Harley in Arrow but it will never happen.”
Many people would probably look at this as a bad thing, but we should look at it differently. People would have loved to see the character on television but television acting and writing are not the strongest. The acting of such a beloved character would be horrible to see on screen. We have a year until we see how the movie version will turn out.
However, why DC executives would drop the ax down on this character, while some other characters are featured in the upcoming films and television series? Executive producers did say that certain characters were off-limits to the television universe and being such a close associate of The Joker probably landed Harley in the off limits category. Maybe it was for the best.