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Vivyan appeared twice in the role of Jason Hemp, a dishonest [[Texas]] [[rancher]], on ABC's ''Disneyland'' in the western miniserie, ''Texas John Slaughter,'' with Tom Tryon in the title role. He also guest starred on Richard Carlson's syndicated western series, ''Mackenzie's Raiders.''

Vivyan appeared twice in the role of Jason Hemp, a dishonest [[Texas]] [[rancher]], on ABC's ''Disneyland'' in the western miniserie, ''Texas John Slaughter,'' with Tom Tryon in the title role. He also guest starred on Richard Carlson's syndicated western series, ''Mackenzie's Raiders.''

Between 1959 and 1961, Vivyan appeared nine times as Lepke, nickname of mobster Louis Buchalter, on NBC's crime drama "The Lawless Years,'', set during the [[Roaring 20s]]. Five of those appearances were on the multi-part episode "Louy K."<ref>{{cite web|url=http://www.imdb.com/title/tt0052484/fullcredits#cast|title=Full cast and crew for ''The Lawless Years|publisher=imdb.com|accessdate=April 3, 2021}}</ref>

Between 1959 and 1961, Vivyan appeared nine times as Lepke, nickname of mobster Louis Buchalter, on NBC's crime drama ''The Lawless Years,'' set during the Roaring 20s. Five of those appearances were on the multi-part episode "Louy K."<ref>{{cite web|url=http://www.imdb.com/title/tt0052484/fullcredits#cast|title=Full cast and crew for ''The Lawless Years|publisher=imdb.com|accessdate=April 3, 2021}}</ref>

In 1962, Vivyan appeared twice on the syndicated western anthology ''[[Death Valley Days]].'' That same year he appeared as Shelly Hanson in NBC's modern-day western, ''Empire,'' starring Richard Egan as the rancher Jim Redigo, in the episode entitled "Down There, the World."  He appeared on two CBS situation comedies,  [[Lucille Ball]]'s ''The Lucy Show'' in the 1963 episode "Lucy Becomes a Reporter" and in ''Petticoat Junction]]'' as Lane Haggard in the 1964 episode "Visit from a Big Star." In 1969, he was teamed up with [[Canada|Canadian]]-born Hollywood actress Yvonne De Carlo in the play, ''Cactus Flower," which drew full houses everywhere it played.

In 1962, Vivyan appeared twice on the syndicated western anthology ''[[Death Valley Days]].'' That same year he appeared as Shelly Hanson in NBC's modern-day western, ''Empire,'' starring Richard Egan as the rancher Jim Redigo, in the episode entitled "Down There, the World."  He appeared on two CBS situation comedies,  [[Lucille Ball]]'s ''The Lucy Show'' in the 1963 episode "Lucy Becomes a Reporter" and in ''Petticoat Junction]]'' as Lane Haggard in the 1964 episode "Visit from a Big Star." In 1969, he was teamed up with [[Canada|Canadian]]-born Hollywood actress Yvonne De Carlo in the play, ''Cactus Flower," which drew full houses everywhere it played.