Postoffice Voice Casting is the legacy of Tone of Voice. Having built a beautiful database with talented voice-overs, Tone of Voice has become a house-hold name within the advertising industry in the Netherlands and beyond. We remain the fast-responding, cheerfully-replying and original-idea-pitching voice-over casting agency. The only thing that has changed is our name. New name, same everything else. We have always been part of Postoffice Amsterdam, but now have taken the name as well.