Nana Visitor with her stand-in.
"According to most of the people who know her, the coy, coquettish intendant is much close to Nana Visitor’s real personality than the tough-as-nails major, something that Visitor herself confirms. ‘It’s very much me. I mean, I hope I don’t send people to their deaths or anything like that, but, yeah, that is more of who I am.’ She laughs. Visitor arrived at the persona by thinking about Kira’s core personality and then ‘messing with her ego a bit, and messing with a few key elements in her life that would have changed its direction. She’s a spoiled brat with an ego gone awry.’"
— The Deep Space Nine Companion