Following graduation from Creston High School, Wallace attended Parsons College in Fairfield, Iowa, which had offered her a full scholarship.
In 1968, Wallace appeared for a year off-Broadway with the group.
Afterwards, she made several other appearances in improvisational shows, When that series ended its six-season run in 1978, Wallace began three decades of television appearances as a game-show panelist on shows such as Match Game, Hollywood Squares, Password Plus and Super Password, Celebrity Whew!
, Crosswits, Hot Potato, Body Language, The ,000 Pyramid, Double Talk, Win, Lose or Draw, To Tell the Truth, and Acting Crazy.
Marcia Karen Wallace (November 1, 1942 – October 25, 2013) was an American actress, voice artist, comedian, and game show panelist, primarily known for her roles in television situation comedies.
She is perhaps best known for her roles as receptionist Carol Kester on the 1970s sitcom The Bob Newhart Show, and as the voice of elementary school teacher Edna Krabappel on the animated series The Simpsons, for which she won an Emmy in 1992. Wallace was known for her tall frame, red hair, and distinctive laugh.
She had a career spanning five decades in TV, in film, and on stage.
A frequent guest on The Merv Griffin Show, she was personally recruited for the soon-to-appear network sitcom The Bob Newhart Show, in a role created especially for her.
Diagnosed with breast cancer in 1985, she became a cancer activist, and remained so throughout her life.
Her father owned and operated "Wallace Sundries", a general merchandise store, where Marcia, her sister Sharon, and brother Jim would often help out.
While in high school, a teacher encouraged Wallace to consider a career in acting after she did well in a school play.
Prior to that, Wallace had been interested in journalism.