def cast
      doc.search("table.cast tr").map do |link|
        picture = link.children[0].search("img")[0]["src"] rescue nil
        name = link.children[1].content.strip rescue nil
        profile_id = link.children[1].search('a[@href^="/name/nm"]').first["href"] rescue nil
        char = link.children[3].content.strip rescue nil
        IMDB::Person.new(@imdb_id, name, char, profile_id, picture) unless name.nil? and char.nil? and picture.nil? and profile_id.nil?
      end.compact
    end
def cast
      doc.search("table.cast tr").map do |link|
        picture = link.children[0].search("img")[0]["src"] rescue nil
        name = link.children[1].content.strip rescue nil
        profile_id = link.children[1].search('a[@href^="/name/nm"]').first["href"] rescue nil
        char = link.children[3].content.strip rescue nil
        IMDB::Person.new(@imdb_id, name, char, profile_id, picture) unless name.nil? and char.nil? and picture.nil? and profile_id.nil?
      end.compact
    end
Get movie cast listing
 @return [Array]