David Groh, the handsome, hardworking character actor best-known to TV viewers as the easygoing man Rhoda Morgenstern married and divorced during the run of the 1970s sitcom Rhoda, has died. He was 68. He died of kidney cancer Tuesday (Feb. 12, 2008) at Cedars-Sinai Medical Center in Los Angeles, his sister-in-law Catherine Mullally said Thursday. Divorce was not a subject generally addressed on TV in the '70s, and when Groh's character, Joe Gerard, and Valerie Harper's Rhoda Morgenstern split during the show's third season, viewers were stunned. Their marriage had resulted in one of Rhoda's highest-rated episodes, and when they split, people sent them condolence cards. Groh, who left the series after the divorce episodes, went on to appear in dozens of TV shows and films, and on Broadway, over the next 30 years.