Ken Jennings - Jeopardy! champ, (holds the record for the longest winning streak on the show), author, television host
Mike Richards - game show producer and host, executive producer of Jeopardy!
Katie Couric - television journalist and TV host
Dr. Mehmet Oz - cardiothoracic surgeon, television personality and author
Aaron Rodgers - star quarterback for the Green Bay Packers of the National Football League
Anderson Cooper.- journalist and CNN host
POLL: Jeopardy! fans, who has been the best guest host of Jeopardy! so far? Respond to the poll below and let me know.
George Sephanopoulos and Robin Roberts of Good Morning America,
David Faber- financial journalist and market news analyst for CNBC
Bill Whitaker - television journalist and CBS news correspondent on 60 Minutes
Mayim Bialak, - actress (Blossom, The Big Bang Theory), neuroscientist, author
Dr. Sanjay Gupta - neurosurgeon, CNN medical reporter
Joe Buck - sportscaster, author and TV host, best known for his lengthy career with Fox Sport