Steve Jobs
The Apple guru was adopted by Clara and Paul Reinhold Jobs shortly after his birth.
In 2011, Walter Isaacson interviewed Steve’s sister Mona Simpson on ’60 Minutes’. During the chat she revealed that the tech genius met his biological father, although he was not aware of it. Jobs spent time tracking down his biological mother, and eventually found out he had a sister - who was Mona - with whom he met.
Mona then tried to contact their father, Abdulfattah John Jandali, who used to work in a coffee shop. While Steve was not interested in pursuing a relationship with him, Jandali revealed they had actually met. According to Simpson, Steve’s father said: "I wish you could have seen me when I was running a bigger restaurant… Everybody used to come there… Even Steve Jobs used to eat there. Yeah, he was a great tipper.”