ro says on 15/Nov/09
there are two. one is hugh o'connor, son of carroll o'connor. he was 185 cm. commited suicide in 1995. the other is hugh o'conor, another actor, no t so handsome... no related

Manitobaboy says on 4/Feb/08
Isn't it Hugh O'Connor? Hugh O'Connor was Carroll O'Connor's adopted son and co-star in In the Heat of the Night. He died in the 90's of a drug overdose.

For the record, 5'8" would seem about right as he wasn't a tall character (not even as tall as Carroll, who isn't very tall - maybe 5'8.5" in the 1980's)