- Susan Brooks: previously US Attorney General and married to Marion County GOP power broker David Brooks
- David McIntosh: Former US Congressman from Indiana. May not yet live in Indiana.
- John McGoff: Former Marion County coroner, medical doctor at Community East. He's previously run against US Congressman Dan Burton twice.
All of the candidates above are running in the Republican primary. The incumbent, Dan Burton, isn't expected to attend.
I'll try to grab a few words with the candidates after the debate.