Who was a actor of M1 's male producer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
?x1 ns:film.producer.film|ns:film.production_company.films M1 .
?x1 ns:people.person.gender ns:m.05zppz
}