Guest Stars

The show has become pretty famous for having a number of celebrity guests. Most have appeared as themselves, however they often play heightened versions of themselves and are open to having the writers make fun of their personas. Others have been open to playing fictional characters and more often than not these are the funnier episodes. Below is a detailed list of every single guest star, who they played and in how many episodes and, if possible, a picture of them in character at the end of the list. In alphabetical order:

Alan Alda: Milton Green, x2
Buzz Aldrin: himself, x1
Jennifer Aniston: Claire Harper, x1
Will Arnett: Devon Banks, x6
Elizabeth Banks: Avery Jessup, x6
Wayne Brady: Steven Black, x1
Jon Bon Jovi: himself, x1
Matthew Broderick: Cooter Burger, x1
Steve Buscemi: Lenny Wosniak, x4
LL Cool J: Ridikolous, x1
Matt Damon: Carol, x1
Edie Falco: Celeste Cunningham, x4
Jimmy Fallon: himself, x1
Will Ferrell: Shane 'Bitch Hunter', x2
Carrie Fisher: Rosemary Howard, x1
James Franco: himself, x1
Whoopi Goldberg: herself, x2
Al Gore: himself, x2
Jon Hamm: Dr. Drew Baird, x5
Salma Hayek: Elisa Pedrera, x6
Sean Hayes: Jesse Parcell, x1
Jan Hooks: Verna Maroney, x2
Cheyenne Jackson: Danny, x5
Ghostface Killah: himself, x2
Larry King: himself, x1
Gladys Knight: herself, x1
Nathan Lane: Eddie Donaghy, x1
John Lithgow: himself, x1
Patti Lupone: Sylvia Rossitano, x2
Steve Martin: Gavin Volure, x1
John McEnroe: himself, x2
Julianne Moore: Nancy Donovan, x5
Emily Mortimer: Phoebe, x3
Megan Mullally: Bev, x1
Conan O'Brien: himself, x1
Oprah: herself, x1
Chris Parnell: Dr. Leo Spaceman, x13
Maury Povich: himself, x1
Andy Richter: Mitch Lemon, x1
Isabella Rossellini: Bianca, x2
David Schwimmer: Greenzo, x1
Martin Scorsese: himself, x1
Jerry Seinfeld: himself, x1
Molly Shannon: Katherine Catherine, x1
Michael Sheen: Wesley Snipes, x4
Sherri Shepherd: Angie Jordan, x6
Elaine Stritch: Colleen Donaghy, x5
Jason Sudeikis: Floyd, x12
Rip Torn: Don Geiss, x7
Christopher Walken: himself, x1
Adam West: himself, x1
Betty White: himself, x1
Kristen Wiig: Candace Van der Shark, x1