Sullivan created the role of love interest Nick Hurley during the screen-to-stage musical's world premiere tour in 2008, and is hoping to reprise it for the forthcoming West End run.
In a recent interview with Whatsonstage.com, Sullivan said: "There's a possibility I might be part of Flashdance in the West End. I'd love to be part of that because I had an incredible time on the tour creating the role and if I was part of an original West End cast I'd feel like I'd really stamped myself on something."
The former pop star, whose other theatre credits include Fame and Love Shack, also revealed plans for a West End transfer of Yusuf Islam's musical Moonshadow. He took part in the concert version of the show last year, and confirmed that Islam - formerly known as Cat Stevens - is keen to "get it into town" in the near future.
Click here to read the full interview