Question: Which star of the Young Philadelphians appeared as Milton Fanshaw in "Coronation Street"?

Context paragraphs:
Sian Powers: Sian Powers is a fictional character from the British ITV soap opera, "Coronation Street", portrayed by Sacha Parkinson.  Sian was introduced as a love interest for Sophie Webster (Brooke Vincent).  Sian joined the cast of "Coronation Street" alongside Ben Richardson (Lucien Laviscount) in January 2009 as Sophie's schoolmates.  They soon form a new group of teenagers along with Ryan Connor (Ben Thompson).  Sian and girlfriend Sophie are "Coronation Street's" first lesbian couple.  It was announced on 29 May 2011 that Parkinson had quit her role, and she made her last on screen appearance on 30 December 2011.

Elsie Tanner: Elsie Gregory (also Grimshaw, Tanner and Howard) is a fictional character from the British ITV soap opera, "Coronation Street", played by Pat Phoenix from the series inception in 1960 to 1973 and from 1976 until 1984.  Elsie Tanner was one of the original core characters on "Coronation Street" and appeared in the very first episode.  She is considered something of an icon in soap history and regarded as one of "Coronation Street's" greatest ever characters.

Weatherfield: Weatherfield is a fictional town based on Salford, Lancashire, which is the setfting for the British ITV soap opera "Coronation Street".  Much of Weatherfield has been seen by viewers throughout the years, though the primary focus from the viewer's perspective is the Coronation Street, a cobbled street where many of the programme's characters live.  Weatherfield areas are often shot on location around Manchester, as its filming studios, the Granada Studios complex on Quay Street in Manchester city centre (closed 2013) and its new set MediaCityUK in Salford Quays (opened 2014), only house the outdoor sets of Coronation Street and its immediate surrounding streets.

The Young Philadelphians: The Young Philadelphians is a 1959 drama film starring Paul Newman, Barbara Rush, Robert Vaughn and Alexis Smith, and directed by Vincent Sherman.  The film is based on the 1956 novel, "The Philadelphian", by Richard P. Powell.

List of Coronation Street characters (2012): "Coronation Street" is a British soap opera first broadcast on 9 December 1960.  The following is a list of characters that first appeared or will appear in 2012, by order of first appearance.  All characters were introduced by series producer, Phil Collinson.  Milton Fanshaw, a new love interest for Sylvia Goodwin, arrived in January.  Rob Donovan made his first appearance in July.  Gloria Price, Ruby Dobbs, Mandy Kamara and her daughter, Jenna made their debuts in September.  Penny Thornley arrived in October and Carole Evans made her debut in November.

Barbara Rush: Barbara Rush (born January 4, 1927) is an American Golden Globe Award-winning movie and television actress.  In 1954, Rush won the Golden Globe Award as most promising female newcomer for her role in the 1953 American black-and-white science fiction film, "It Came From Outer Space".  Later in her career, Rush became a regular performer in the television series "Peyton Place", and appeared in TV movies, miniseries, and a variety of other programs, including the soap opera "All My Children", as well as starring in films including "The Young Philadelphians", "The Young Lions", "Robin and the 7 Hoods" and "Hombre".

Ken Barlow: Kenneth "Ken" Barlow is a fictional character from the British ITV soap opera, "Coronation Street", played by William Roache.  Ken was created by Tony Warren as one of "Coronation Street's" original characters.  He debuted in the soap's first episode on 9 December 1960.  Having appeared continuously since the programme's inception, December 2010 marked Ken's 50th anniversary on-screen.  At this time, Roache officially became the longest-serving actor in a televised soap opera.  Roache was honoured at the 2010 Guinness World Records ceremony for the achievement, when he surpassed actor Don Hastings from the American soap opera "As the World Turns", who previously held this title.  Roache stated in 2010 that he has no plans to leave the role and will remain in "Coronation Street" for as long as they will have him.

The Road to Coronation Street: "The Road to Coronation Street" was written by Daran Little, a long-time archivist on "Coronation Street" who became a scriptwriter.  At the time, however, Little was a scriptwriter for "Coronation Street"' s rival, "EastEnders", broadcast on BBC One.  Though "Coronation Street" is, and always has been, broadcast on ITV, a competing network, the idea of documenting the show on the anniversary of its half century running was picked up by its natural rival, the BBC.  It has, however, been repeated several times on ITV3 and, on the occasion of Tony Warren's death, ITV.

Robert Vaughn: Robert Francis Vaughn (November 22, 1932 – November 11, 2016) was an American actor noted for his stage, film and television work.  His best-known TV roles include suave spy Napoleon Solo in the 1960s series "The Man from U.N.C.L.E."; wealthy detective Harry Rule in the 1970s series "The Protectors"; Morgan Wendell in the 1978–79 mini series "Centennial"; formidable General Hunt Stockwell in the 5th season of the 1980s series "The A-Team"; and grifter and card sharp Albert Stroller in the British television drama series "Hustle" (2004–2012), for all but one of its 48 episodes.  He also appeared in the British soap opera "Coronation Street" as Milton Fanshaw, a love interest for Sylvia Goodwin between January and February 2012.

The Young Philadelphians: Live in Tokyo: The Young Philadelphians: Live in Tokyo is a live album by Marc Ribot's Young Philadelphians which was recorded in Japan in 2014 and released on the Enja Records Yellowbird label.

Supporting paragraphs: The Young Philadelphians Robert Vaughn
Answer: Robert Vaughn