Question: who played the youngest girl in the brady bunch
Answer: Cynthia `` Cindy '' Brady - née Cynthia Martin ( bottom left ) , portrayed by Susan Olsen in the TV show , The Brady Bunch Hour , The Brady Girls Get Married and The Bradys , Jennifer Runyon in A Very Brady Christmas , Olivia Hack in the theatrical films and Sofia Vassilieva in the 2002 TV movie , is the youngest Brady daughter .