The series depicted an undercurrent of at least partial credulity among authority figures regarding Vincent's claims, even in the first season, as in early episodes such as "The Mutation" where a security agent (Lin McCarthy) is keeping an eye on Vincent and ends up inclined to believe him.
Some controversy arose regarding the sudden ending of the TV show after season two as it was deemed no proper ending had been written (unlike The Fugitive, another Quinn Martin show).