Block's first big break was selling Buick Centuries at the Chicago Auto show. Early on he made numerous tv commercials, short films, and experimental theater pieces. He has appeared on stages from Off-Off to Broadway (for Arthur Laurents, Edward Albee, Robert Smith, Doric Wilson...) in As You Like It, Forever After, A Loss Of Memory, Provicante di Saliva, Bald Soprano, Make Mine Kafka!, among many others. He played U.S. President Howard Lewis in the film "Salt", Sebastian Weinberg in "My Best Day", Walter Hill in Only I..., and more. Block portrayed U.S. Olympian Robert Garrett in the NBC miniseries, "The First Olympics: Athens 1896", as well as starring roles in several other TV movies and pilots. And, has appeared steadily in lead roles in several dramatic serials - "Knots Landing", "Guiding Light", "All My Children", "As the World Turns", and "One Life to Live". He has long voiced multiple commercial and digital campaigns and varied projects, performed with the Indonesian poetry forum Yang Mengatakan, the Balinese Shadow Theatre, and the Norwegian Arctic Rights Group Vakne Opp's aerial production of "Ballong", and is a regular contributor to "Sweet Dreams", an audio series of bedtime stories.