Sami Brady is a fictional character from Days of Our Lives, an American soap opera on the NBC network, portrayed by Alison Sweeney since 1993. The character is first seen as a newborn baby in the episode of October 16, 1984, in which mom Marlena Evans (Deidre Hall) gives birth to her and her twin brother Eric Brady. Initially played by a series of child actresses, Sweeney took over the role of Sami when the character was rapidly-aged from a pre-teen to a teenager, in January 1993, under the pen of head writers Sheri Anderson and James E. Reilly.