10 Movie Co-Stars Who Shared Iconic Roles
8. Frank Welker And Zac Efron - Fred Jones
Since his very first appearance in 1969's Scooby-Doo, Where are You!, trap expert and Mystery Machine driver Fred Jones has been voiced by legendary voice actor Frank Welker. In 2002's What's New Scooby-Doo?, Welker also took over the voice of the titular talking dog himself, and has voiced both characters in nearly every adaptation since.
Welker reprised the role of Scooby-Doo in 2020's feature film Scoob!, but, since the human characters were voiced by big-name actors, he gave up the role of Fred to Zac Efron. As such, Scoob! features two actors who have played Fred.
Similarly, Welker and Don Messick, the original voice of Scooby-Doo, also work as a pair of co-stars who shared a role, since both voiced Scooby.