Celebrity guests

Given that Wheel of Fortune is a large part of Americana, it is no surprise that it has had quite a few celebrity guests to either promote something or simply play the game (although the latter has fallen out of use since late 2007).

C
Bill Cullen (host and regular panelist on more game shows than could be reasonably listed here)
 * November 6, 1980 (played for an audience member as part of Game Show Hosts Week)

G
Merv Griffin (creator of Wheel and Jeopardy!)
 * January 9, 1989 (daytime)

J
Arte Johnson (star of Laugh-In)
 * September 1977 (guest hostess, partly to promote his upcoming game show Knockout)

K
Tom Kennedy (host of You Don't Say!, Split Second, Password Plus, and Body Language among others)
 * November 7, 1980 (played for an audience member as part of Game Show Hosts Week)

M
Gordon MacRae
 * March 15, 1978 (appeared after the game)

Jean-Paul Manoux (no credits at the time, but later rose to fame as an actor)
 * Unknown daytime episode between February 1985 and October 1986 (contestant (as "J.P.") during Teen Week, winning $9,020: $2,650 in the front game and a $6,370 trip to Tahiti in the Bonus Round)

Wink Martindale (host of {Las Vegas} Gambit and Tic-Tac-Dough, among others)
 * November 1980 (played for an audience member as part of Game Show Hosts Week; may be November 3)

O
Rosie O'Donnell (comedienne; host of The Rosie O'Donnell Show)
 * March 1997

Donny Osmond (singer; host of Pyramid, 2002-04)
 * September 2002

P
Jim Perry (host of Definition, Headline Hunters, and Sale of the Century)
 * November 1980 (played for an audience member as part of Game Show Hosts Week; may be November 4)

Drew Pinsky (no credits at the time, but later rose to fame as "Dr. Drew")
 * Unknown daytime episode between January and September 1984 (contestant)

R
Paul Rodriguez (comedian; host of The Newlywed Game, 1988-89)
 * [date of appearance]

Barbara Rucker (star on Texas)
 * September 17, 1980 (unknown capacity)

S
Pat Sajak (radio DJ {1960s}, weatherman at KNBC {1977-81})
 * July 17, 1989 (cameo on the CBS daytime premiere to wish Bob Goen good luck)

Richard Simmons (exercise/fitness guru)

T
Jeffrey Tambor

Josh Taylor (star on Days of Our Lives)
 * September 15, 1980 (unknown capacity)

Ben Thomas (star on The Doctors)
 * September 16, 1980 (unknown capacity)

Alex Trebek (host of Jeopardy! since 1984)
 * November 2, 2000 (played as part of an "unmask the stars" contest as a gnome named Osment)

W
Douglass Watson (star on Another World)
 * September 18, 1980 (unknown capacity)

Betty White (actress; starred in The Golden Girls, among many other shows)
 * June 14, 1988 (daytime cameo)