Question: Which cast member of "It Happened on Fifth Avenue" was also a major Broadway star in the 1920's?
Context: Victor Frederick Moore (February 24, 1876 – July 23, 1962) was an American actor of stage and screen, as well as a comedian, writer, and director, most significantly a major Broadway star from the late 1920s through the 1930s. Saint Marks Avenue was a station on the demolished section of the BMT Fifth Avenue Line.  Served by trains of the BMT Culver Line and BMT Fifth Avenue Line, it had 2 tracks and 2 side platforms.  The station was opened on June 22, 1889 at Fifth Avenue and St. Marks Place, which is renamed St. Marks Avenue east of Fifth Avenue.  It also had a connection to the Bergen Street Line trolleys.  It closed on May 31, 1940. The Fifth Avenue Line, also called the Fifth Avenue Elevated or Fifth Avenue-Bay Ridge Line, was an elevated rail line in Brooklyn, New York City, United States.  It ran above Hudson Avenue, Flatbush Avenue, Fifth Avenue, 38th Street, and Third Avenue from Downtown Brooklyn south to Bay Ridge.  The portion on Third Avenue was called the Third Avenue Elevated to distinguish service from the West End Elevated. 36th Street was a station on the demolished section of the BMT Fifth Avenue Line.  It was served by trains of the BMT Culver Line and BMT Fifth Avenue Line.  It had four tracks and two island platforms.  The station was opened on May 29, 1890, and was the southern terminus of the Fifth Avenue Line until 1893, as well as the southernmost station to be installed along Fifth Avenue itself.  Stations built beyond this point were located along Third Avenue, and the line was sometimes called the BMT Third Avenue Line south of here.  The next stop to the north was 25th Street.  The next stop to the south was Ninth Avenue for Culver Line trains and 40th Street for Fifth Avenue Line trains.  Ninth Avenue station still exists today exclusively for the BMT West End Line.  The station closed on May 31, 1940.  Current rapid transit service in this area can be found one block west at the 36th Street Station on the underground BMT Fourth Avenue Line. It Happened on Fifth Avenue (1947) is a motion picture comedy, directed by Roy Del Ruth and starring Victor Moore, Ann Harding, Don DeFore, Charles Ruggles and Gale Storm.  Herbert Clyde Lewis and Frederick Stephani were nominated for the Academy Award for Best Story, losing to Valentine Davies and another Christmas-themed story, "Miracle on 34th Street". The Madison Square Theatre was a Broadway theatre in Manhattan, on the south side of 24th Street between Sixth Avenue and Broadway (which intersects Fifth Avenue near that point.)  It was built in 1863, operated as a theater from 1865 to 1908, and demolished in 1908 to make way for an office building.  The Madison Square Theatre was the scene of important developments in stage technology, theatre design, and theatrical tour management.  For about half its history it had other names including the Fifth Avenue Theatre, Daly’s Fifth Avenue Theatre, Hoyt’s Madison Square Theatre, and Hoyt’s Theatre. Fulton Street was a station on the demolished section of the BMT Fifth Avenue Line.  Served by trains of the BMT Culver Line and BMT Fifth Avenue Line, it had two tracks and one island platform.  The station was opened on July 27, 1889 at Hudson Avenue and Fulton Street, and was the northernmost Fifth Avenue Line station before the line merged with the BMT Myrtle Avenue Line.  It also had connections to the Fulton Street, DeKalb Avenue, and Flatbush Avenue Line streetcars.  The next stop to the north was Bridge–Jay Streets.  The next stop to the south was Atlantic Avenue, which still exists today as the Atlantic Avenue – Barclays Center subway station complex.  It closed on May 31, 1940. 880 Fifth Avenue is a luxury apartment building on Fifth Avenue at the northeast corner of 69th Street in New York City.  The Art-Deco-styled building has 21 floors and features 162 residential units.  880 Fifth Avenue is also one of the few Fifth Avenue buildings to have a garage. "General Hospital" is the longest running American television serial drama, airing on ABC.  Created by Frank and Doris Hursley, the series premiered on April 1, 1963.  The longest-running cast member is Leslie Charleson, who has portrayed Dr. Monica Quartermaine since August 17, 1977, also making her one of the longest-tenured actors in American soap operas.  Former cast member Rachel Ames was previously the series' longest-running cast member, portraying Audrey Hardy from 1964 to 2007, and making guest appearances in 2009 and 2013, the latter for the series' fiftieth anniversary.  Ames made a special appearance on October 30, 2015.  Actors Genie Francis and Kin Shriner, who portray Laura Spencer and Scott Baldwin, are the second and third longest-running cast members, having joined "General Hospital" in February and August 1977, respectively.  Actress Jacklyn Zeman — who portrays Bobbie Spencer — is the fourth longest-running cast member, joining the serial in December 1977.  Actress Jane Elliot, who joined the serial in June 1978 as Tracy Quartermaine, is the fifth longest-running cast member, joining "General Hospital" in June 1978 until her departure in May 2017.  Former cast member Anthony Geary, who portrayed Luke Spencer, was the sixth longest-running cast member, having joined "General Hospital" in November 1978.  The following list is of cast members who are currently on the show: the main and recurring cast members, or those who are debuting, departing or returning to the series. The Fifth Avenue Transportation Company was a transportation company based in New York which was founded in 1885 and operated of horse-and-omninbus transit along Fifth Avenue, with a route running from 89th Street to Bleecker Street using horse-drawn omnibuses.  Fifth Avenue was unusual in that its residents opposed the installation of railway track for streetcars and was the only avenue in Manhattan to never see streetcar service.  The company was declared bankrupt of the earlier operator in 1896, and was succeeded by the Fifth Avenue Coach Company
Answer: Victor Moore