By bit player, I mean actors (https://www.decades.com/specials/remembering-mary/8-actors-who-appeared-on-the-mary-tyler-moore-show-before-they-were-famous) in one shot parts (https://ew.com/tv/mary-tyler-moore-show-guest-stars/) who later (https://www.metv.com/lists/8-actors-who-appeared-on-the-mary-tyler-moore-show-before-they-were-famous) went on to be quite successful in their own right.


Helen Hunt - Murray's daughter

John Ritter - Priest that married Ted and Georgette

Henry Winkler - Rhoda's date

Fred Grandy - Reverend at the Teddy Awards

Bernie Kopell - Mary's date

Craig T. Nelson - Mechanic

Louise Lasser - Bank clerk

Beth Howland - Separated wife of man Mary Dates

Isabel Sanford - Mother to a coworker Mary interviews

David Ogden Stiers - Station manager at WJM

Gordon Jump

Dabney Coleman - Congressman

Mary Frann - Mary's anti-Semitic friend

Joseph Campanella - Mary's date

Mary Kay Place - Mary's neighbor at her new flat (along with an established Penny Marshall)

Gordon Jump - Tried out for sportscaster

Mackenzie Phillips - Mary's "little sister" in the "little sisters" program

Jeff Conway - An ice skater used to make Lou jealous

Richard Kline - Attorney attempts to prosecute Mary for not revealing sources

good list !
flash backs galore !