What actor was in The Two Towers Scorpion King and Titanic?

That would be Dwayne "The Rock" Johnson.

* The Two Towers: He played the role of the "King of the Stone Giants" (uncredited) in the Lord of the Rings film.

* The Scorpion King: This was his breakout role, and he was the titular character.

* Titanic: He had a small, uncredited role as a "Third-Class Passenger."