Actor Larry Hagman started out as a nice guy in "I Dream of Jeannie" but it was evil that made him famous as J.R. Ewing, a business cheat, faithless husband and bottomless well of corruption in "Dallas." Hagman died over the weekend at the age of 81. Hagman had returned as J.R. in this year's new edition of "Dallas" on TNT. Linda Gray, his on-screen wife and later ex-wife in the original series and the sequel, says Hagman "brought joy to everyone he knew." Victoria Principal, who co-starred in the original series, recalled Hagman as "bigger than life." She calls Hagman "unforgettable, and  irreplaceable." Jeannie star Barbara Eden says Hagman was "an element of pure Americana."