Actor Chuck Norris is 71. Actress Katharine Houghton is 66. Guitarist Tom Sch olz of Boston is 64. Actress Shannon Tweed is 54. Actress Sharon Stone is 53. Magician Lance Burton is 51. Actress Jasmine Guy is 49. Actor Jon Hamm is 40. Rapper-producer Timbaland is 39. Guitarist Jerry Horton of Papa Roach is 36. Singer Robin Thicke is 34. Singer Carrie Underwood is 28. Actress Emily Osment is 19.