Courageous Collie Carlo, or just "Carlo" for short, is super dog that appears on TV on Martha Speaks. Martha has a crush on him due to thinking he's handsome and his acting skills. He has a huge fear of flowers. Martha and Helen love to watch Courageous Collie Carlo, which is Martha's favorite TV show. Almost everyone thinks Courageous Collie Carlo is a hero, however he is only acting. In reality he's quite shy.