Ralph was born in Los Angeles on November 11, 200 A.D. His education is bodyguard. He was transformed in Volterra by Marcus on his 20th birthday.
Kind, helpful and almost as kind as Marcus (before Marcus lost Didyme, Marcus was very kind. So if Ralph had lived on that time, he had almost been las kind as Marcus. But he wasen't born on that time. But when Ralph was born, Didyme was death. So when Didyme died, Marcus been more stricter on the rules. And that did that Marcus been more bad. But he was kind. But since Marcus been more bade, Ralph been more kind than Marcus. So he is more kind than Marcus.).
He is not mentioned in any of the movies or books. He never speaks. If you look closely at both New Moon and Breaking Dawn movies, you can see a figure standing / go to right-back to Marcus.