Question: Which Mary Tyler Moore Show actress guest starred in the episode of an NBC comedy which also featured the final apprearance of Lindsey Broad?

Context paragraphs:
Mary Tyler Moore filmography and awards: Mary Tyler Moore (December 29, 1936 – January 25, 2017) was an American actress, known for her roles in the television sitcoms "The Mary Tyler Moore Show" (1970–1977), in which she starred as Mary Richards, a thirtyish single woman who worked as a local news producer in Minneapolis, and "The Dick Van Dyke Show" (1961–1966), in which she played Laura Petrie, a former dancer turned Westchester homemaker, wife and mother.  Her notable film work includes 1967's "Thoroughly Modern Millie" and 1980's "Ordinary People", in which she played a role that was very different from the television characters she had portrayed, and for which she was nominated for an Academy Award for Best Actress.

Last Day in Florida: "Last Day in Florida" is the eighteenth episode of the eighth season of the American comedy television series "The Office" and the show's 170th episode overall.  The episode originally aired on NBC in the United States on March 8, 2012.  "Last Day in Florida" was written by Robert Padnick and directed by Matt Sohn.  The episode features the final appearance of Lindsey Broad and guest stars Georgia Engel.

Mary Tyler Moore: Mary Tyler Moore (December 29, 1936 – January 25, 2017) was an American actress, known for her roles in the television sitcoms "The Mary Tyler Moore Show" (1970–1977), in which she starred as Mary Richards, a single woman working as a local news producer in Minneapolis, and "The Dick Van Dyke Show" (1961–1966), in which she played Laura Petrie, a former dancer turned Westchester homemaker, wife and mother.  Her film work includes 1967's "Thoroughly Modern Millie" and 1980's "Ordinary People", in which she played a role that was very different from the television characters she had portrayed, and for which she was nominated for an Academy Award for Best Actress.

Mary (1985 TV series): Mary is an American sitcom that aired on CBS from December 11, 1985, to April 8, 1986.  The series stars Mary Tyler Moore in her return to series television after an absence of over six years, during which time she appeared on Broadway in "Whose Life Is It Anyway? " and in the dramatic film "Ordinary People".  After "The Mary Tyler Moore Show", her subsequent ventures into series television on the variety shows "Mary" (1978) and "The Mary Tyler Moore Hour" (1979) had been short-running ratings disasters, and Moore decided to return to the sitcom format which had brought her the greatest television success; the sitcom nonetheless met the same fate as the variety shows.

Gwen Gillen: Gwendolyn "Gwen" Gillen (January 6, 1941 – January 27, 2017) was an American sculptor and artist.  Her best known works include a bronze sculpture of actress Mary Tyler Moore tossing her Tam o' shanter hat into the air as a homage to the final scene of opening credits of "The Mary Tyler Moore Show".  Gillen life-size sculpture of Moore, which dedicated in 2002 in the Nicollet Mall in downtown Minneapolis, has own of the city's most recognizable landmarks and "symbol of Minneapolis".  Her other well known pieces include a 4-foot bronze sculpture of Gertie the Duck, which was installed on the Wisconsin Avenue bridge in Milwaukee in 1997.

Georgia Engel: Georgia Bright Engel (born July 28, 1948) is an American actress who is best known for her role as Georgette Franklin Baxter on "The Mary Tyler Moore Show".

The Mary Tyler Moore Show opening sequence: "The Mary Tyler Moore Show" opening sequence is an element of the American television series "The Mary Tyler Moore Show".  In 1999, "Entertainment Weekly" picked Mary Richards' hat toss at the end of the sequence as the 1970s' second-greatest television moment.  The theme song, "Love Is All Around", was written and performed by Sonny Curtis.

Lou Grant (TV series): Lou Grant is an American drama series starring Ed Asner in the title role as a newspaper editor that aired on CBS from September 20, 1977 to September 13, 1982.  The series was the third spin-off of the sitcom "The Mary Tyler Moore Show".  "Lou Grant" was created by "The Mary Tyler Moore Show" co-creators James L. Brooks and Allan Burns, along with Gene Reynolds.

Phyllis (TV series): Phyllis is an American sitcom that aired on CBS from September 8, 1975, to March 13, 1977.  Created by Ed Weinberger and Stan Daniels, it was the second spin-off of "The Mary Tyler Moore Show" (the first being "Rhoda").  The show starred Cloris Leachman as Phyllis Lindstrom, who was previously Mary Richards' landlady on "The Mary Tyler Moore Show".

Nancy Walker: Nancy Walker (May 10, 1922 – March 25, 1992) was an American actress and comedian of stage, screen, and television.  She was also a film and television director (most notably of "The Mary Tyler Moore Show", on which she also made several guest appearances).  During her five-decade long career, she may be best remembered for her long-running roles as Mildred on "McMillan & Wife" and Ida Morgenstern, who first appeared on several episodes of "The Mary Tyler Moore Show" and later became a prominent recurring character on the spinoff series "Rhoda".

Supporting paragraphs: Last Day in Florida Georgia Engel
Answer: Georgia Engel