Complex sentence: David Threlfall (born 12 October 1953) is an English stage, film and television actor and director best known for playing Frank Gallagher in Channel 4's series "Shameless".
Split into simpler sentences: David Threlfall (born 12 October 1953) is an English stage, film and television actor and director. He plays Frank Gallagher in Channel 4's series "Shameless".