Terence Stamp

Terence Stamp played the voice role of the Prophet of Truth in Halo 3, who was portrayed by Michael Wincott in Halo 2.

Alongside Halo 3, Stamp also has portrayed several other characters, many of them being villains.

In live action films, Stamp portrayed General Zod in Superman II, Chancellor Valorum in Star Wars Episode I: The Phantom Menace, Stick in Elektra, and films such as Red Planet and My Boss' Daughter.

Stamp also lent his voice in animated features and video games. In addition to Truth, Terence Stamp also played another key video game antagonist, Mankar Camoran, in the Elder Scrolls IV: Oblivion.

In the Halo 3 LE bonus disc you can see him doing his voice act. He's talking as Truth on the part where you enter the control room of the Ark ([Installation 00]) in Halo 3.