With Cory Monteith's untimely demise, the Fox series becomes the latest to lose a regular. Let us have recap at the other comedies and dramas that have prematurely said goodbye to a star during their run.

1. Cory Monteith, 'Glee'

Glee's Cory Monteith was found dead in his Vancouver hotel room July 13. Representatives for Fox and producers 20th Century Fox Television say it's too soon to know how his passing will impact the production. Season five is slated to premiere in September, but it's unclear if the show will make that date.

2. Diana Hyland, 'Eight Is Enough'

Eight Is Enough's Diana Hyland, who had been diagnosed with breast cancer in 1977, became ill after only appearing in four episodes. Hyland was written out of the rest of the first season, dying less than two weeks after Eight Is Enough premiered on TV in March 1977.

3. George Reeves, 'Adventures of Superman'

Struggling for some time, The Adventures of Superman called it a day when George Reeves died of an alleged suicide -- though producers did pitch several unsuccessful attempts at a spinoff.

4. Jim Davis, 'Dallas'

Well-known character actor Davis played family patriarch Jock Ewing from the show's 1978 debut until his death from cancer on April 26, 1981, during the show's fourth season.

5. Mark Frankel, 'Kindred the Embraced'

Kindred -- a 1996 Fox show that remixed the vampire mythos with mafia tropes -- had already aired its first and only season when the U.K.-born actor, then just 34, died in a motorcycle crash in West London.

6. John Ritter, '8 Simple Rules'

John Ritter had filmed three episodes of ABC comedy 8 Simple Rules for Dating My Teenage Daughter's second season before suffering an undiagnosed aortic dissection after experiencing discomfort during rehearsals. He died that evening at 54 in 2003.

7. Redd Foxx, 'The Royal Family'

Comedian Redd Foxx became a TV star on Sanford and Son and returned to the small screen decades later in CBS' 1991-92 comedy The Royal Family. Foxx, who played Alexander Alfonso Royal, collapsed in the middle of rehearsals on a Paramount Studios sound stage. He died four hours later at 68 in October 1991.

8. Andy Whitfield, 'Spartacus'

In 2010, Spartacus star Andy Whitfield was diagnosed with non-Hodgkin lymphoma and his treatment delayed the start of production on season two of the Starz drama. Whitfield died a year later in 2011.

9. Will Greer, 'The Waltons'

When Greer passed away on hiatus, The Waltons returned for its seventh season with news that Grandpa Zebulon "Zeb" Tyler Walton had died of a heart attack.

10. Michael Conrad, 'Hill Street Blues'

When Conrad, who played the Hill's beloved Sgt. Estherhaus, died of cancer in November 1983 during the show's fourth season.

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