Cameron Gayden. Actor: Seattle Firefighters: Die jungen Helden. Cameron Edward Gayden was born in Oakland, CA and currently resides in Los Angeles, CA with his parents. He is known for his roles as Young Rio in NBC's Good Girls, Young Magnum in Magnum P.I., Young EZ Reyes in Mayans M.C., Mateo in Undone, and Frank in both Grey's Anatomy and Station 19. He is also known for his role as...