Began ballet lessons at age 6 and was dancing in the Radio City Music Hall corps de ballet by age 16
Appeared in several Broadway musicals, including Michael Kidd's Li'l Abner (1958) and Wildcat (1960); used her earnings to finance acting classes
Moved with then-husband Richard Schaal from New York to Chicago in the mid-'60s so he could join the Second City comedy troupe; she later auditioned and was also accepted, beginning a five-year run with the company
Was Linda Lavin's understudy in 1968's Something Different and their stage careers have intertwined ever since: Lavin replaced Harper in Story Theatre, and Harper replaced Lavin in 1995's Death Defying Acts and in 2001's The Tale of the Allergist's Wife
Cast as the matriarch in Valerie in 1986; title was changed to Valerie's Family and then to The Hogan Family after she left the series in 1987 due to a contract dispute (she was replaced by Sandy Duncan)
Cowrote and starred in All Under Heaven, a one-woman show about author Pearl S
Buck that debuted in 1998
Penned a memoir (with writer Catherine Whitney and illustrator Rick Tulka) in 2001 entitled Today I Am a Ma'am: And Other Musings on Life, Beauty and Growing Older
Awards
1980Golden Globe-Best Performance by an Actress in a Supporting Role in a Motion Picture:nominated
1978Emmy-Outstanding Lead Actress in a Comedy Series:nominated
1977Emmy-Outstanding Lead Actress in a Comedy Series:nominated
1976Emmy-Outstanding Lead Actress in a Comedy Series:nominated
1976Golden Globe-Best Performance by an Actress in a Television Series - Musical or Comedy:nominated
1975Emmy-Outstanding Lead Actress in a Comedy Series:winner
1975Golden Globe-Best Performance by an Actress in a Television Series - Musical or Comedy:winner
1975Golden Globe-New Star of the Year - Actress:nominated
1974Golden Globe-Best Performance by an Actress in a Supporting Role in a Series, Miniseries or Motion Picture Made for Television:nominated
1974Emmy-Best Supporting Actress in Comedy:nominated
1973Golden Globe-Best Performance by an Actress in a Supporting Role in a Series, Miniseries or Motion Picture Made for Television:nominated
1972Emmy-Outstanding Performance by an Actress in a Supporting Role in Comedy:winner
1971Emmy-Outstanding Performance by an Actress in a Supporting Role:winner
1971Emmy-Outstanding Performance by an Actress in a Supporting Role in Comedy:winner