Former 'Law & Order' star Jesse L Martin is in negotiations about joining the new series 'The Philanthropist'.

The series follows a billionaire (James Purefoy) who uses his wealth to help people around the world.

The Hollywood Reporter says that if Martin agrees a deal he will play the central character's friend and business partner.

Martin, who played Detective Ed Green in 'Law & Order', will star as the late soul singer Marvin Gaye in the upcoming biopic 'Sexual Healing'.