Dancing With the Stars season 34 contestant Dylan Efron is pulling back the curtain on his relationship with his dad, David Efron. Related: Zac Efron’s Family Guide: Meet Brother Dylan, Sister Olivia and More Zac Efron has been open about his bond with his family over the years. Even at the height of his career, Zac opted to live with his brother, Dylan Efron. “If there’s two things about Zac, when he’s on a movie, he’s that same way that he gives 100 percent. It’s so inspiring to see.”Related: How Dylan Efron's Brother Zac Inspired His Bond With Their Younger Siblings Dylan Efron is loving his role as a big brother — and he is thankful to his older sibling Zac Efron for setting a great example.