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In 1967, Hayes appeared twice as George Moran on'[[Walt Disney]]s ''Wonderful World of Color'' with [[Roger Mobley]] in the title role of Gallagher. He appeared that same year in several episodes of the ABC [[soap opera]] ''General Hospital.'' In 1968, he was cast in the last episode of the first season of ''Ironside''. He remained in demand for appearances on television westerns, having guest starred twice in 1968–69 on NBC's ''The High Chaparral''' in the episodes "Threshold of Courage" and "A Fella Called Kilroy." Hayes appeared in eight segments of James Arness' CBS western, ''Gunsmoke.''<ref name=imdb/>​

In 1967, Hayes appeared twice as George Moran on'[[Walt Disney]]s ''Wonderful World of Color'' with [[Roger Mobley]] in the title role of Gallagher. He appeared that same year in several episodes of the ABC [[soap opera]] ''General Hospital.'' In 1968, he was cast in the last episode of the first season of ''Ironside''. He remained in demand for appearances on television westerns, having guest starred twice in 1968–69 on NBC's ''The High Chaparral''' in the episodes "Threshold of Courage" and "A Fella Called Kilroy." Hayes appeared in eight segments of James Arness' CBS western, ''Gunsmoke.''<ref name=imdb/>​

 

===Later career===​

===Later career===

From 1969 to 1972, after Robert Bray, as Forest Ranger Corey Stuart, had departed the series, Hayes appeared seven times on CBS's ''Lassie,'' six of those in 1971–1972 in the role of rancher Garth Holden. His co-stars at the time were Larry Pennell, as his brother, and Larry Wilcox as a friend of his son's.<ref name=imdb/>​

From 1969 to 1972, after Robert Bray, as Forest Ranger Corey Stuart, had departed the series, Hayes appeared seven times on CBS's ''Lassie,'' six of those in 1971–1972 in the role of rancher Garth Holden. His co-stars at the time were Larry Pennell, as his brother, and Larry Wilcox as a friend of his son's.<ref name=imdb/>​

 

In 1979, Hayes portrayed a Sheriff Pinter in James Arness's ABC series ''How the West Was Won.'' Otherwise, most of his work in the 1970s was on drama series, including Raymond Bur'd ''Ironside'' on NBC and ''The Mod Squad'' on ABC. He also appeared in three CBS series, Jack Lord's original version of ''Hawaii Five-O'' (as Roy in the Season 3 episode "The Ransom" and as Laughlin in the Season 5 episode "The Odd-Lot Caper"), William Conrad's ''Cannon'' (as Harry Gibbons in the episode "Press Pass to the Slammer"), and Buddy Ebsen's ''Barnaby Jones'' (as Sheriff Oscar Hamlin in "Target for a Wedding"). His last recurring work was as Hank Johnson in 1980–1981 in six episodes of CBS's [[prime time]] soap opera ''Dallas.'' Thereafter, in 1983, he appeared as Tim Coulton in "Children of Jamestown" of NBC's ''The A-Team'' starring George Peppard.<ref name=imdb/>​

In 1979, Hayes portrayed a Sheriff Pinter in James Arness's ABC series ''How the West Was Won.'' Otherwise, most of his work in the 1970s was on drama series, including Raymond Bur'd ''Ironside'' on NBC and ''The Mod Squad'' on ABC. He also appeared in three CBS series, Jack Lord's original version of ''Hawaii Five-O'' (as Roy in the Season 3 episode "The Ransom" and as Laughlin in the Season 5 episode "The Odd-Lot Caper"), William Conrad's ''Cannon'' (as Harry Gibbons in the episode "Press Pass to the Slammer"), and Buddy Ebsen's ''Barnaby Jones'' (as Sheriff Oscar Hamlin in "Target for a Wedding"). His last recurring work was as Hank Johnson in 1980–1981 in six episodes of CBS's [[prime time]] soap opera ''Dallas.'' Thereafter, in 1983, he appeared as Tim Coulton in "Children of Jamestown" of NBC's ''The A-Team'' starring George Peppard.<ref name=imdb/>​

 

==Accidental death==​

===Accidnetal death===​

Hayes died at the age of seventy-five from complications of an acute subdural hematoma which resulted from a fall near his residence in Malibu, California. He was survived by his three children and five grandchildren.<ref name=obit/>His son Peter Gynt Hayes (1955-2015, was an [[educator]] and outdoorsman like his father. In 1988, he sustained a fall that crushed both heel bones but recovered. He spent his last years in [[Utah]] and taught for twenty-eight years.<ref name=pgh>{{cite web|url=https://www.legacy.com/obituaries/deseretnews/obituary.aspx?pid=175863971|title=Peter Hayes obituary|publisher=''Salt Lake City Deseret News''|date=September 20, 2015|accessdate=June 28, 2020}}</ref>

Hayes died at the age of seventy-five from complications of an acute subdural hematoma which resulted from a fall near his residence in Malibu, California. He was survived by his three children and five grandchildren.<ref name=obit/>His son Peter Gynt Hayes (1955-2015, was an [[educator]] and outdoorsman like his father. In 1988, he sustained a fall that crushed both heel bones but recovered. He spent his last years in [[Utah]] and taught for twenty-eight years.<ref name=pgh>{{cite web|url=https://www.legacy.com/obituaries/deseretnews/obituary.aspx?pid=175863971|title=Peter Hayes obituary|publisher=''Salt Lake City Deseret News''|date=September 20, 2015|accessdate=June 28, 2020}}</ref>

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