LeGault was on screen in a variety of programs including the short lived series "Werewolf" in 1987. In 1980, he starred with Kenny Rogers in the television movie "The Gambler". He made a few appearances on the second season of "Dynasty" as gangster Ray Bonning. He appeared on "Knight Rider" in the pilot episode "Knight of the Phoenix" and appeared (as a different character) in the season 2 episode "Knight in Shining Armor"; and played three different characters in "Airwolf" (in "To Snare a Wolf", "Sweet Britches" as villains, and "Wildfire" in a comparatively rare good guy role) as well as doing the voice-overs for the series' 1st Season "saga sell" teasers. He guest-starred on yet another hit 1980s television series "Dallas" as Al Halliday in 1989. In 1984 he also starred in "Murder, She Wrote", Season 4 Episode 20.