Question: What American actress who began her theatre career in 1951, played Livia Soprano on the HBO series The Sopranos?

Context articles: Joseph Siravo
Mandya Ramesh
Bobby Baccalieri
Edie Falco
Livia Soprano
Esin Varan
Suzanne Shepherd
Jamie-Lynn Sigler
Nancy Marchand
Lottie Venne

Joseph Siravo (born February 12, 1957) is an American actor known for his role as Tony Soprano's father Johnny Soprano on the HBO series, "The Sopranos".
Mandya Ramesh is an Indian actor, comedian, director and theatre personality who mainly works for the Kannada films and theatre.
 He started his theatre career in 1982 through a theatre workshop conducted by Ashok Badaradinni, a graduate from National School of Drama.
 He has worked for Neenasam theatre institute from 1984 as an actor and technician.
 He then joined Rangayana in 1989 and worked under the guidance of B. V. Karanth for around 9 years.
 He debuted into acting in films in 1995, with a popular role in the film "Janumada Jodi" alongside Shiva Rajkumar.
 In 2002 he founded his own school for theatre arts, "Natana" and conducted many workshops through this institute in various parts of Karnataka.
 He has also written two books, "Rangavalli" and "Kanavarike" that are related to his life in theatre.
 He has acted in around 150 films among which "Janumada Jodi", "Nagamandala", "Kanasugara", "Mata", "Oggarane" are prominent.
 He has also appeared in TV series like "Janani", "Manethana", " Chi Sou Savithri".
 The popular plays he has directed include "Mruccha Katika", "Sankranthi", "Yuyuthsu" to name a few.
 He is currently serving as the founder director for "Natana" School of Theatre arts situated in Mysuru.
 He also appears as "Mandya Muddesha" in the popular Kannada sketch comedy show Majaa Talkies, hosted by Srujan Lokesh currently being aired on Colors Kannada channel.
Robert "Bobby Bacala" Baccalieri, Jr., played by Steve Schirripa, is a fictional character on the HBO series "The Sopranos".
 A mobster, he is first shown as one of the soldiers and then later top aides to Corrado "Junior" Soprano.
 Throughout the series, he rises through the ranks of the organized crime organization, becoming a capo, as well as Tony Soprano's brother-in-law.
Edith "Edie" Falco ( ; born July 5, 1963) is an American television, film, and stage actress, known for her roles as Diane Whittlesey in the HBO series "Oz" (1997–2000), Carmela Soprano on the HBO series "The Sopranos" (1999–2007), the title character of the Showtime series "Nurse Jackie" (2009–15), and Sylvia Wittel on the Louis C.K. web series, "Horace and Pete" (2016).
Olivia "Livia" Soprano (née Pollio), played by Nancy Marchand, is a fictional character on the HBO TV series "The Sopranos".
 She is the mother of Tony Soprano.
 A young Livia, played by Laila Robins and later by Laurie J. Williams is sometimes seen in flashbacks.
 Series creator David Chase has stated that the main inspiration for the character was his own mother.
Esin Varan is an American actress of Film, TV and Stage.
 She has Turkish, Armenien, Greek and Georgian descents.
 She started acting at a very early age.
 She also has a Bachelor's Degree from Marmara University International Relations and Political Science.
 She was also pursuing her TV, Film and theatre career alongside her university.
Suzanne Shepherd is an American actress and theater director.
 She is best known for her portrayal of Karen's overbearing mother in the film "Goodfellas", Carmela Soprano's mother Mary De Angelis in the HBO television series "The Sopranos", and the assistant school principal in "Uncle Buck".
 She also played the role of Mrs. Scarlini in the film 2000 film "Requiem for a Dream", and Big Ethel in "A Dirty Shame".
 Shepherd studied acting with Sanford Meisner, and later went on to teach Meisner's program of acting study, the first woman to do so.
 She was a founding member of the Compass Players in the early 1960s, along with such other actors as Alan Alda and Alan Arkin.
 In 2016, she played the role of Lucille Abetemarco the mother of Detective Anthony Abetemarco played by former "Sopranos" co-star Steve Schirripa in "Good Cop Bad Cop" the 2nd episode of the 7th season of the CBS police procedural drama "Blue Bloods".
 Her daughter is artist Kate Shepherd.
Jamie-Lynn Sigler (born May 15, 1981) is an American actress and singer.
 She is best known for her role as Meadow Soprano on the HBO series "The Sopranos".
Nancy Marchand (June 19, 1928 – June 18, 2000) was an American actress.
 She began her career in theatre in 1951.
 She was perhaps most famous for her television portrayals of Margaret Pynchon on "Lou Grant" and Livia Soprano on "The Sopranos".
Lottie Venne (28 May 1852 – 16 July 1928) was a British comedian, actress and singer of the Victorian and Edwardian eras, who enjoyed a theatre career spanning five decades.
 Venne began her stage career in musical burlesque before moving into farce and comedy.
 She appeared in several works by each of F. C. Burnand and W. S. Gilbert and was often in plays with Charles Hawtrey later in her career.