Melissa Joan HartMelissa Joan Hart made her support for Mitt Romney public in the 2012 election. (Photo by Neilson Barnard/Getty Images)
Tom SelleckTom Selleck is a registered Republican and supported Mitt Romney in 2012. (credit: Kevin Winter/Getty Images?
Clint EastwoodActor Clint Eastwood made headlines after his empty-chair speech at the Republican National Convention, during which he spoke to an imaginary President Barack Obama. (Photo by Mark Wilson/Getty Images)
Denver Broncos v Baltimore RavensMatt Birk of the Baltimore Ravens, who recently announced his retirement, refused to visit the White House with his Super Bowl winning team because he disagrees with Democratic President Barack Obama. (Photo by Larry French/Getty Images)
Kelsey GrammerThe actor has alluded to the idea that perhaps he didn't win an Emmy in 2012 because he is a Republican. (Photo by Kevork Djansezian/Getty Images)
Jessica SimpsonJessica Simpson is a registered Republican. (credit: Jamie McCarthy/Getty Images)
Nick LacheyAnd like his first wife, Nick Lachey is also a registered Republican. (Photo by Alberto E. Rodriguez/Getty Images)
MeatloafLongtime Republican supporter and musician Meatloaf campaigned with Republican candidate for president Mitt Romney. (Photo by Justin Sullivan/Getty Images)
Woody JohnsonJets owner Woody Johnson was very clear about his support for Mitt Romney in 2012. (credit: Rob Carr/Getty Images)
Hilary DuffThis Texas girl came out in support of George W. Bush in 2005 by performing at his inauguration ceremony. (Photo by Jason Kempin/Getty Images)
Angie HarmonAngie Harmon, seen here speaking during the 2004 Republican National Convention with her husband, NFL player Jason Sehorn, also supported McCain in 2008 and Mitt Romney in 2012. (Photo by Alex Wong/Getty Images)
Chuck NorrisChuck Norris famously supported Mike Huckabee for the Republican nomination in 2008 and has made substantial contributions to the GOP. He's also filled in for conservative talk show host Sean Hannity on the Fox News Channel. (Photo by Cliff Hawkins/Getty Images)
Shannon DohertyActress Shannon Doherty is a registered Republican. (Credit: David Livingston/Getty Images)
Naomi JuddCountry music singer, songwriter and activist Naomi Judd has been a registered Republican for many years and was a supporter of the George W Bush administration. (credit: Ethan Miller/Getty Images)
Britney SpearsIn 2002, singer Britney Spears said, "Honestly, I think we should just trust our president in every decision that he makes, and we should just support that, you know, and be faithful in what happens."
Dennis HopperThe late actor Dennis Hopper was a registered Republican.
Tom ClancyAuthor Tom Clancy has generally been regarded as a political conservative, and has donated over US$256,000 to Republican Party political candidates. Some of his books bear dedications to Republican political figures, most notably Ronald Reagan.
Danny AielloDuring an interview with Sean Hannity, actor Danny Aiello pointed out that he is a conservative.
John ElwayHall of Fame quarterback John Elway has contributed to a number of Republican Party candidates in recent elections. He considered running for the U.S. Senate as a Republican.
Sara EvansCountry music singer Sara Evans performed at the 2004 Republican National Convention.
LeeAnn WomackCountry singer Lee Ann Womack sang at the Republican National Convention in 2004.
Richard PettyNASCAR driver Richard Petty was the Republican nominee for North Carolina Secretary of State in 1996.
Marie OsmondCountry music singer Marie Osmond is a registered Republican.
Mel GibsonActor Mel Gibson has been widely perceived as a conservative Republican, even though he has never identified himself as such. Many of Gibson's positions are in accordance with traditional Catholicism. He released a statement in March 2005 condemning the euthanasia of Terri Schiavo, and has criticized stem cell research.
Dale Earnhardt Jr.NASCAR driver Dale Earnhardt Jr. is a registered Republican.
Jackie MasonAward-winning actor and comedian Jackie Mason endorsed Jennifer Horn, the Republican candidate for Congress from Nashua, NH.
Jon VoightActor Jon Voight appeared in a video available on YouTube from the Republican National Convention admonishing people to support the American troops.
Curt SchillingRetired baseball pitcher Curt Schilling campaigned for President George W. Bush in 2004. In 2007 he announced his support for Republican presidential candiate Sen. John McCain.
Bruce WillisIn 2007, actor Bruce Willis declared he maintains some Republican ideologies but is currently an independent. He has endorsed every Republican presidential candidate except Bob Dole in 1996.
Scott BaioActor Scott Baio was a member of Young Americans for Freedom, a conservative youth organization.
Dr. PhilDr. Phil is a registered Republican.
Bo DerekModel and actress Bo Derek is a conservative Republican who supported George H.W. Bush in 1988 and 1992 and campaigned for his son, George W. Bush in 2000 and 2004, and she appeared at both Republican conventions.
Nick LacheySinger Nick Lachey is a registered Republican.
Stephen BaldwinSince 2001, actor Stephen Baldwin has become an outspoken Christian conservative, with a Christian ministry and book to his name.
Karl MaloneFormer NBA star Karl Malone is a registered Republican.
Arnold SchwarzeneggerBodybuilder, actor, businessman, and Republican, Arnold Schwarzenegger was elected governor of California in 2003.
Susan LucciEmmy Award winning actress Susan Lucci is an outspoken conservative Republican, and has planned fundraising events for former New York City mayor Rudolph Giuliani, with the help of his ex-wife, Donna Hanover.
Sarah Michelle GellarActress Sarah Michelle Gellar is a registered Republican.
Martina McBrideCountry-pop music singer-songwriter Martina McBride is a registered Republican.
Gloria EstefanSinger Gloria Estefan is a registered Republican.
Jack NicklausProfessional golfer Jack Nicklaus is a registered Republican.
Heather LocklearActress Heather Locklear is a registered Republican.
Ronan TynanIrish tenor Ronan Tynan performed at the prayer service marking George W. Bush 's second inauguration.
Jessica SimpsonSinger Jessica Simpson is a registered Republican.
Kim AlexisModel Kim Alexis is a registered Republican.
Dwayne 'The Rock' JohnsonIn 2000, Dwayne 'The Rock' Johnson delivered a speech at the Republican National Convention.
Cheryl LaddSinger, author, and actress Cheryl Ladd is a registered Republican.
Robert DuvallActor Robert Duvall was personally invited to Republican President George W. Bush's inauguration in 2001. According to MSNBC, Duvall narrated most of the videos for the 2008 Republican Convention.
Kid RockMusician Kid Rock is a registered Republican.
Ben SteinActor Ben Stein was a speechwriter and lawyer for President Richard Nixon, and later for President Gerald Ford.