I forgot about Batgirl! I was going to mention Catwoman, but I was always confused as to if she was good or bad. (Although as a 13 year old - always one of my favorites!).
Catwoman is pretty much a grey character — neither completely good nor bad. She’s described as a thief with a heart of gold. Usually, she’s a vigilante-type. Sort of a darker version of Batman, willing to cross the line when she has to.
And don’t sell Palin short of filling out the Catwoman suit. :)