▁and ▁in ▁ 1 9 6 3 ▁he ▁appeared ▁as ▁Mike ▁Nor ris ▁in ▁the ▁episode ▁" H ang ▁By ▁One ▁Hand " ▁on ▁the ▁N BC ▁medical ▁drama ▁about ▁psych iat ry , ▁The ▁Ele vent h ▁H our . ▁He ▁also ▁guest - star red ▁on ▁Com bat ! ▁and ▁Mi racle ▁of ▁the ▁White ▁St all ions . ▁Francis cus ▁may ▁be ▁best - rem ember ed ▁for ▁his ▁title ▁roles ▁in ▁N BC ' s ▁Mr . ▁Nov ak ▁( 1 9 6 3 – 6 5 ) ▁and ▁ABC ' s ▁Long street ▁( 1 9 7 1 – 7 2 ) ▁which ▁included ▁his ▁blind ▁character ▁taking ▁mart ial ▁arts ▁less ons ▁in ▁Je et ▁K une ▁Do ▁from ▁the ▁late ▁Bruce ▁Lee ▁as ▁Li ▁Ts ung ▁in ▁four ▁episodes , ▁and ▁for ▁his ▁vocal ▁performance ▁in ▁the ▁big - screen ▁version ▁of ▁Jonathan ▁Living ston ▁Se ag ull ▁( 1 9 7 3 ). ▁Al ong ▁with ▁Lloyd ▁Br id ges , ▁he ▁served ▁as ▁host ▁of ▁the ▁synd ic ated ▁real - life ▁advent ure ▁series ▁Water world , ▁which ▁a ired ▁from ▁ 1 9 7 2 ▁to ▁ 1 9 7 5 . ▁ ▁In ▁ 1 9 7 7 , ▁he ▁star red ▁in ▁his ▁fifth ▁television ▁series , ▁the ▁short - l ived ▁Hunter ▁( as ▁a ▁secret ▁agent ). ▁ ▁He ▁was ▁also ▁frequently ▁seen ▁in ▁feature ▁films ▁of ▁the ▁ 1 9 6 0 s ▁and ▁ 1 9