Complex sentence: Kellan Christopher Lutz (born March 15,1985) is an American fashion model and actor for television and films, who is best known for playing Emmett Cullen in the "Twilight Saga" film series.
Split into simpler sentences: Kellan Christopher Lutz (born 1985) is an American fashion model and actor for television and films. He is best known for playing Emmett Cullen in the "Twilight Saga" film series.