 Toward the end of the first season, Beck, still a series regular, appeared in two episodes in the completely unrelated role of Orv, who gets Nichols into trouble with his schemes.In effect, Beck was playing a double role, but only Nichols and Mitch mention his resemblance to Ketcham in the first of the two episodes.Mitch Mitchell, played by Stuart Margolin (who would later team with Garner again on "The Rockford Files" and "Bret Maverick").