Oprah Has a Sister 13.03K Brian Moylan 01/24/11 11:32AM Filed to: revelations revelations Oprah Winfrey sisters siblings The oprah winfrey show Appic Tweetg Tweetd Oprah has been hyping a huge family secret she plans to reveal on today's program. Guess what it is? She has a secret sister living in Milwaukee! She's actually Oprah's half-sister, but still. Welcome to the billionaire's club, lady!