9 4 2 ▁and ▁remained ▁active ▁for ▁more ▁than ▁ 4 0 ▁years . ▁During ▁that ▁time , ▁he ▁was ▁involved ▁in ▁more ▁than ▁ 2 5 0 ▁films , ▁cart o ons ▁and ▁TV ▁appearances ; ▁as ▁was ▁the ▁case ▁for ▁many ▁voice ▁actors ▁of ▁the ▁time , ▁his ▁appearances ▁were ▁often ▁un cred ited . ▁ ▁Fre es ' ▁early ▁radio ▁career ▁was ▁cut ▁short ▁when ▁he ▁was ▁draft ed ▁into ▁World ▁War ▁II ▁where ▁he ▁fought ▁at ▁Norm andy , ▁France ▁on ▁D - Day . ▁He ▁was ▁wounded ▁in ▁action ▁and ▁was ▁returned ▁to ▁the ▁United ▁States ▁for ▁a ▁year ▁of ▁recuper ation . ▁He ▁attended ▁the ▁Ch ou in ard ▁Art ▁Institute ▁under ▁the ▁G . I . ▁Bill . ▁When ▁his ▁first ▁wife ' s ▁health ▁failed , ▁he ▁decided ▁to ▁drop ▁out ▁and ▁return ▁to ▁radio ▁work . ▁ ▁He ▁appeared ▁frequently ▁on ▁Hollywood ▁radio ▁series , ▁including ▁Es cape , ▁playing ▁lead ▁roles ▁and ▁altern ating ▁with ▁William ▁Con rad ▁as ▁the ▁opening ▁announ cer ▁of ▁Sus p ense ▁in ▁the ▁late ▁ 1 9 4 0 s , ▁and ▁parts ▁on ▁Gun sm oke ▁( do ing ▁an ▁imp erson ation ▁of ▁Howard ▁Mc N ear ▁as ▁Doc ▁Adams ▁for ▁at ▁least ▁one ▁episode , ▁" The ▁Cast "), ▁and ▁Crime ▁Class ics . ▁One ▁of ▁his ▁few ▁st arring ▁roles ▁in ▁this ▁medium ▁was ▁as ▁J eth ro ▁Dum ont / Green ▁L ama ▁in ▁the ▁ 1 9 4 9 ▁series ▁The