Question: Morning Glory starred the American actor who is a regular on what Showtime/BBC series?

Context paragraphs:
Caroline Hayes: Caroline Hayes is an English actress currently working and living in London.  She has appeared on stage and television in the UK and Canada, most notably in the BBC series "The Sins", alongside Pete Postlethwaite and Geraldine James, and Servants, another BBC series featuring Joe Absolom.  She also starred in the highly acclaimed Donmar Warehouse production of "The Real Thing" by Tom Stoppard alongside Steven Dillane and Jennifer Ehle.  In the North American market, she had a supporting role in two episodes of the Canadian science fiction TV series "Starhunter".

Morning Glories: Morning Glories is a comic book series published by Image Comics.  Described by writer Nick Spencer as ""Runaways" meets "Lost"," the series focuses on six "brilliant but troubled" new recruits at Morning Glory Academy, a prestigious prep school hiding "sinister and deadly" secrets.  Featuring interior art by Joe Eisma and cover art by Rodin Esquejo, the series debuted in August 2010.

Morning Glory (1933 film): Morning Glory is a 1933 Pre-Code American drama film which tells the story of an eager would-be actress and her journey to stardom, and what she loses as a result.  The picture stars Katharine Hepburn, Douglas Fairbanks, Jr., and Adolphe Menjou, was adapted by Howard J. Green from a then not yet stage produced play with the same name by Zoë Akins, and was directed by Lowell Sherman.  Hepburn won her first Academy Award for Best Actress for this movie.  "Morning Glory" was remade in 1958 under the title "Stage Struck".

Morning Glory (2010 film): Morning Glory is a 2010 American comedy film directed by Roger Michell and written by Aline Brosh McKenna.  It stars Rachel McAdams, Harrison Ford and Diane Keaton, with Patrick Wilson, John Pankow and Jeff Goldblum.  The plot revolves around young and devoted morning television producer Becky Fuller (McAdams), who is hired as an executive producer on the long-running morning show "DayBreak", at a once-prominent but currently failing station in New York City.  Eager to keep the show on air, she recruits a former news journalist and anchor (Ford) who disapproves of co-hosting a show that does not deal with real news stories.

Mark Williams (actor): Mark Williams (born 22 August 1959) is an English actor, screenwriter and presenter.  He is best known as Arthur Weasley in the "Harry Potter" films, and as one of the stars of the popular BBC sketch show "The Fast Show".  He also played Brian Williams (father of Rory Williams) in the BBC series "Doctor Who", and Olaf Petersen in "Red Dwarf".  More recently he has appeared as the title character in the BBC series "Father Brown".

John Pankow: John Pankow (born April 28, 1954) is an American actor.  He is a series regular on the Showtime/BBC series "Episodes" as Merc Lapidus, the volatile former head of a major U.S. television network.

Stage Struck (1958 film): Stage Struck is a 1958 American drama film directed by Sidney Lumet, and stars Henry Fonda, Susan Strasberg and Christopher Plummer in his film debut.  It was based on the 1925 Paramount Pictures film of the same name.  The screenplay, by Augustus and Ruth Goetz, is based on the stage play "Morning Glory" by Zoë Akins, which also served as the basis for the 1933 film "Morning Glory" which starred Katharine Hepburn, Douglas Fairbanks, Jr. and Adolphe Menjou in corresponding roles.

Morning Glory (Tim Buckley album): Morning Glory is a compilation album by Tim Buckley.  The album is a compilation of the Buckley's 1968 John Peel session (see "Peel Sessions") and two further tracks ("Honeyman" and Fred Neil's "Dolphins") taken from the May 21, 1974 performance for, BBC TV music series, The Old Grey Whistle Test.  The performance of "Dolphins" is also available as a video on 2007 DVD release .

Once I Was: Once I Was is a compilation album by Tim Buckley.  The album features the "Peel sessions" from April 2, 1968, two tracks, "Honeyman" and "Dolphins", from a BBC broadcast of The Old Grey Whistle Test on May 21, 1974 and finally "I Don't Need It to Rain" taken from the October 12 1968 live show in Copenhagen.  This collection features the same track listing as the "Morning Glory" compilation, with the sole difference being the inclusion "I Don't Need It to Rain".  Buckley and his band are accompanied by famed Danish jazz double bassist Niels-Henning Ørsted Pedersen on this track due to the unavailability of Buckley's regular bassist for the 1968 European tour.

Lowell Sherman: Lowell J. Sherman (October 11, 1885 – December 28, 1934) was an American actor and film director.  At a time when it was highly unusual, he was both the actor and director on several films in the early 1930s, before completely transitioning to the role of director.  At the height of his career, after scoring huge successes with his direction of the films "She Done Him Wrong" and "Morning Glory" (which starred Mae West and won her first Academy Award for Katharine Hepburn respectively), he succumbed to pneumonia after a brief illness.

Supporting paragraphs: Morning Glory (2010 film) John Pankow
Answer: Episodes