The Republican presidential candidates will face off Thursday night for one of their final debates before the leadoff Iowa and New Hampshire contests.

The prime-time debate, hosted by Fox Business Network, starts at 9 p.m. ET, and will include:

Billionaire businessman Donald Trump; Texas Sen. Ted Cruz; Florida Sen. Marco Rubio; retired neurosurgeon Ben Carson; New Jersey Gov. Chris Christie; former Florida Gov. Jeb Bush; and Ohio Gov. John Kasich.

An evening debate of lower-polling candidates begins at 6 p.m. ET. Those qualifying for that debate are: Kentucky Sen. Rand Paul; former HP CEO Carly Fiorina; former Arkansas Gov. Mike Huckabee; and former Pennsylvania Sen. Rick Santorum. Paul has said he does not plan to attend.

Click for the FoxNews.com liveblog on the debates.

Click for details on how to watch the debates.

The Thursday debates will be held at the North Charleston Coliseum and Performing Arts Center in North Charleston, S.C.