difference between mortal hercules and inmortal hercules?

Who is who?. I mean, classic herc with the beard and moustache, the one who was beat by the masters of evils with mister hyde, goliath, the destroyer, etc in the avengers series , is him inmortal hercules or mortal hercules?

http://www.killermovies.com/forums/f95/t346614.html

Please use that. Thanks.