22 Celebrities You Probably Didn’t Know Have Siblings

17. Zac Efron’s Brother

Zac Efron is another Disney-kid turned Hollywood heartthrob. His brother Dylan, however, has managed to stay out of the spotlight despite being very close to him. “We live together, and we’re different in a lot of ways, but he’s really grounded. He lived a more normal life than I did growing up, so he’s a great barometer for me,” Zac Efron says.