Hollywood's Action Dads

Hugh & Ava Jackman! Cash & Honor Warren! From scooting to surfing, see how these celeb fathers stay active with their kids

ROBIN THICKE

Hear them roar: The R&B singer and son Julian, 2, come face-to-face with a beastly playmate as they pal around during an Aug. 9 father-son outing at a Beverly Hills park.