Question: Which Scottish-American actor, singer, and dancer made a guest appearance on the BBC sitcom "My Family"?

Context paragraphs:
Harrison Hunter: Harrison Hunter (1870 – January 2, 1923) was a Scottish-American actor.  Hunter was born to Scottish parents who were visiting Nashville, Tennessee.  His parents took him back to Scotland; he was raised in the United Kingdom and began his acting career there.  He married actress Sidney Crowe.  In 1892 they had a daughter, who later performed under the name Leah Bateman.  Hunter returned to the United States in 1899 as a member of the theatrical company of Olga Nethersole.  He stayed and purchased a farm in Brookfield, Massachusetts.

Terry and Julian: Terry and Julian is a British sitcom that aired on Channel 4 in 1992.  Starring Julian Clary, it was written by Clary, Paul Merton and John Henderson.  The title is a spoof the title of the long-running BBC sitcom "Terry and June", whose star June Whitfield made a guest appearance in one episode of "Terry and Julian".

Alan Cumming: Alan Cumming, OBE (born 27 January 1965), is a Scottish-American actor, singer/performer, author, and activist who has appeared in numerous films, television shows, and plays.  His London stage appearances include "Hamlet", the Maniac in "Accidental Death of an Anarchist" (for which he received an Olivier Award), the lead in "Bent", and the National Theatre of Scotland's "The Bacchae".  On Broadway, he has appeared in "The Threepenny Opera", as the master of ceremonies in "Cabaret" (for which he won a Tony Award), "Design for Living" and a one-man adaptation of "Macbeth".  His best-known film roles include his performances in "Emma", "GoldenEye", the "Spy Kids" trilogy, "Son of the Mask," and "X2".  Cumming also introduces "Masterpiece Mystery! " for PBS and appeared on "The Good Wife", for which he has been nominated for three Primetime Emmy Awards, two Screen Actors Guild Awards, two Golden Globe Awards and a Satellite Award.  A filming of his Las Vegas cabaret show, "Alan Cumming Sings Sappy Songs", aired on PBS stations in November 2016.

Lucius Vorenus (Rome character): Lucius Vorenus is a semi-fictional character in the British-Italian-American historical drama television series "Rome", a show about the fall of the Roman Republic and the rise of the Roman Empire.  Played by Scottish-American actor Kevin McKidd in the series, Lucius Vorenus is introduced as a main character in the pilot episode, "The Stolen Eagle".  He is depicted as a staunch, traditional, Roman soldier, who struggles to balance his personal beliefs, his duty to his superiors, and the needs of his family and friends.

Steve Valentine: Steve Valentine (born 26 October 1966) is a Scottish-American actor, musician, and magician who has performed on stage and screen but who is best known for his role as the eccentric Nigel Townsend on NBC's crime drama "Crossing Jordan" and as Harry Flynn in the critically acclaimed PlayStation 3 game "" as well as the voice of Alistair in BioWare's "Dragon Age" franchise.  He also starred in the Disney XD sitcom "I'm in the Band" as Derek Jupiter until its 2011 cancellation.

Guest appearance: In show business, a guest appearance is the participation of an outsider performer (such as a musician or actor) in an event such as a music record or concert, show, etc., when the performer does not belong to the regular cast, band or other performing group.  In music, such an outside performer is often referred to as a guest artist.  In performance art, the terms guest role or guest star are also common, the latter term specifically indicating the guest appearance of a celebrity.  The latter is often also credited as "special guest star" or "special musical guest star" by some production companies.

Ben Greaves-Neal: Benjamin Greaves-Neal is an English actor.  His career dates back to 2010 when he made a guest appearance in the award-winning BBC sitcom My Family.

My Family (series 9): The ninth series of the BBC family sitcom "My Family" originally aired between 2 April 2009 and 24 December 2009.  The series was commissioned following successful ratings from the previous series.  The opening episode, "Bully For Ben", re-introduces the six main characters, with the exception of Abi.  Kris Marshall (Nick) and Siobhan Hayes (Abi) make a guest appearance in the last episode of the series, "Kenzo's Project".  All episodes from the ninth series are thirty minutes long, excluding the Christmas special.  The eighth episode of the series, "The Guru", was announced as the 100th episode of the series, and included guest appearances from John Barrowman and David Haig.  The series was once again produced by Rude Boy Productions, a company that produces comedies created by Fred Barron.  The series was filmed at Pinewood Studios in London, in front of a live audience.

John Barrowman: John Scot Barrowman, {'1': ", '2': ", '3': ", '4': "} (born 11 March 1967), is a Scottish-American actor, singer, dancer, presenter and writer, who holds both British and American citizenship.  Born in Glasgow, Scotland, he moved to the United States with his family in 1975.  Encouraged by his high school teachers, Barrowman studied performing arts at the United States International University in San Diego before landing the role of Billy Crocker in Cole Porter's "Anything Goes" at London's West End.

Alan Cumming filmography: The following is the filmography for Scottish-American actor, director, producer, writer Alan Cumming.

Supporting paragraphs: My Family (series 9) John Barrowman
Answer: John Barrowman