Answer
The answer is Dylan. Dylan Sprouse, the older twin by 15 minutes, made his acting debut first, appearing in a 1993 episode of "Grace Under Fire." Cole Sprouse followed shortly after, joining Dylan in the 1999 film "Big Daddy." From then on, they shared the spotlight, co-starring in the popular Disney Channel series "The Suite Life of Zack & Cody" and its spin-off "The Suite Life on Deck."