Ihnat held over 70 guest credits in such well known series as Star Trek episode "Whom Gods Destroy" (1969) as the psychotic Garth of Izar and also two episodes of The Fugitive, entitled "Cry Uncle" (alongside Ron Howard) and "The Walls of Night". Other credits include Blue Light ("Field of Dishonor"), Gunsmoke ("Exodus 21:22", "Jenny" with Lisa Gerritsen (December 28, 1970), “The Mission” & "Noose of Gold"), The Silent Force ("Take As Directed For Death"), Bonanza ("Dead and Gone" as Johann Brunner, "A Dream to Dream" as Josh Carter and "Terror at 2:00" as Mr. Ganns), The Virginian ("Jed" and "Last Grave at Socorro Creek"), Mission: Impossible ("The Astrologer"), ("The Mind of Stefan Miklos"), Cimarron Strip ("The Hunted"), I Dream of Jeannie ("My Master the Rainmaker"), Mannix ("Huntdown", "End Game" and "To Draw the Lightning"), The F.B.I. ("Region of Peril" and "The Prey"), The Name of the Game ("The Chains of Command" and "Nightmare"), Medical Center ("Fright and Flight") and Perry Mason ("The Case of the Duplicate Case"). In 1971 Inhat was in Sweet, Sweet Rachel, a TV movie that formed the basis for the series The Sixth Sense.
