Complex sentence: He is well known for his work on the FOX action series "24" and the Showtime thriller "Homeland", which he co-developed with Alex Gansa and Gideon Raff.
Split into simpler sentences: He is well known for his work on the FOX action series "24" and the Showtime thriller "Homeland". The latter of which he co-developed with Alex Gansa and Gideon Raff.