Complex sentence: Campanella's first film role was as Mook, the Moon-Man in the 1949 science-fiction series "Captain Video and His Video Rangers" and went on to appear in more than 100 film and television episodes, usually playing the "tough guy".
Split into simpler sentences: Campanella's first film role was as Mook, the Moon-Man in the 1949 science-fiction series "Captain Video and His Video Rangers". He went on to appear in more than 100 film and television episodes, usually playing the "tough guy".