Question: who played junior on in the heat of the night?
Answer: Christian LeBlanc

Christian LeBlanc Portrayed Junior Abernathy , a patrolman seen only during Season 1 . Junior was a young and inexperienced policeman who often was chastised by Detective Tibbs or Chief Gillespie for not knowing proper police procedure . However , Junior often rose to the occasion to assist in arrests or at other incidents in Sparta .