Dr. Leo Spaceman (pronounced “spa-che-man”), is an unethical, inept physician, and according to Jack, a “pretty good dentist”. Dr. Spaceman is also an author, having written a sexual advice book called “You’re Doing It Wrong”. He explains that if the tips given in his book are followed explicitly, he can “guarantee male orgasm”.

He is often employed by, and treats, Tracy and Jack.

His received his medical degree from the Ho Chi Minh City School of Medicine.

Kenneth (Jack McBrayer) is an NBC page working in Studio 6H, where “TGS” is filmed. He lives for his job, and loves television. People are often thrown off by his personality, as he is almost overly-polite, and has constant smile on his face. Tracy has appointed himself Kenneth’s mentor, and Kenneth often assists him with random tasks. Jack, referring to Kenneth, has said , “In five years we’ll all either be working for him… or be dead by his hand.”

Jenna Maroney (Jane Krakowski) is a long-time collaborator with, and the best friend of Liz Lemon. She was the star of “The Girlie Show” until Jack Donaghy came around. He quickly brought Tracy Jordan on board and changed the name of the show to “TGS with Tracy Jordan”. Because of this, she is often paranoid regarding her career and status on the show.

Her film, “The Rural Juror”, will be in theaters soon.

Tracy Jordan (Tracy Morgan) is the star of “TGS with Tracy Jordan” (formerly known as “The Girlie Show”). He was hand-picked for the job by Jack Donaghy. Before starring in “TGS” he had a successful movie career, appearing in such films as “Who dat Ninja?”, “Honky Grandma Be Trippin’”, “President Homeboy”, “Black Cop/White Cop”, and “Fat Bitch”.

Jack Donaghy (Alec Baldwin) is “VP of of East Coast Television and Microwave Oven Programming”. He is Liz Lemon’s boss, and believes in taking an hands-on approach to management. He has re-tooled “The Girlie Show” by insisting that Tracy Jordan be added to the cast, and has appointed himself as Lemon’s mentor. He has stated that his greatest achievement in life is the creation of the Trivection oven for parent company GE.

Liz Lemon (Tina Fey) is the head writer of “TGS with Tracy Jordan” (formerly known as “The Girlie Show”). She is from White Haven, PA, but has said that she wants to live in NYC for the rest of her life. Liz is a big Star Wars fan, but also seems to enjoy Heroes, Ugly Betty, and Elmer Fudd. Her best friend is Jenna Maroney.