Compassionate and against racism, he fiercely defended Ryan when he was threatened by a white man, openly calling Ryan his grandson. is equally against sexism, often having to work as the Doctor's proxy in intolerant societies. his wife died. often said wisecracks whenever faced with the Doctor's eccentricities or dangerous situations. upset and hurt that Ryan refused to call him "granddad" but was elated when Ryan finally referred to him as such. is often the voice of reason.