who played mark greene's dad on er
John Cullum
title: Mark Greene text: Mark Greene Dr. Mark Greene is a fictional medical doctor from the television series "ER", portrayed by the actor Anthony Edwards. For most of his time on the series, Greene's role was that of a mediator and occasional authority figure, and he was considered the main character of the series for the first eight seasons. Mark was also the only original character to die, and his death at the end of Season 8 marked one of the biggest turning points in the series. Mark Greene, an only child, was raised by his mother, Ruth, and father, David. David Greene served title: John Cullum text: the revival of "110 in the Shade" (2007). He portrayed tavern owner Holling Vincoeur on the television drama series "Northern Exposure", earning an Emmy Award nomination as Best Supporting Actor in a Drama. He was featured in fifteen episodes of the NBC television series "ER" as Mark Greene's father. He was the farmer in the landmark television drama "The Day After". He has made multiple guest appearances on "Law & Order" and "" as attorney, now judge, Barry Moredock, and appeared as Big Mike in several episodes of "The Middle". As of December 2017, he is appearing as Senator Beau title: ER (TV series) text: back his involvement in later years to focus on other projects. Other executive producers include writers Carol Flint, Neal Baer, R. Scott Gemmill, Dee Johnson, Joe Sachs, Lisa Zwerling, and Janine Sherman Barrois. Several of these writers and producers had extensive background in emergency medicine. Joe Sachs was a regular emergency attending physician, while Lisa Zwerling and Neal Baer had pediatrics backgrounds. The series' crew was recognized with awards for writing, directing, producing, film editing, sound editing, casting, and music. The original starring cast consisted of Anthony Edwards as Dr. Mark Greene, George Clooney as Dr. Doug Ross, Sherry Stringfield title: Anthony Edwards text: Anthony Edwards Anthony Charles Edwards (born July 19, 1962) is an American actor and director. He is best known for his role as Dr. Mark Greene on the first eight seasons of "ER", for which he received a Golden Globe award and six Screen Actors Guild Awards, and was nominated for four consecutive Primetime Emmy Awards. Additionally, he has appeared in various movies and television shows, including "Top Gun", "Zodiac", "Miracle Mile", "Revenge of the Nerds", "Planes", and "Northern Exposure". Edwards was born in Santa Barbara, California, the son of Erika Kem (née Weber), an artist/landscape painter, and Peter Edwards, title: John Cullum text: addition to enjoying a long stage career, he is well known to television audiences for his regular role as Holling Vincoeur on the quirky CBS series "Northern Exposure", his extended appearances on the NBC medical drama "ER" as Mark Greene's father, and on "" as constitutional lawyer and later judge, Barry Moredock. Cullum has also appeared as Lucky Strike executive Lee Garner, Sr. on AMC's "Mad Men". He appeared as Leap Day William, the embodiment of the fictional Leap Day national holiday, in the "Leap Day" episode of the sixth season of NBC's "30 Rock". John Cullum most recently appeared