Lennart has a voice that has never fully broken. He wears rather thick glasses, which enlarge his sparking blue eyes that shinew with intellect: He has uncombed greying hair and a three days beard. He refuses to wear suits (except for funerals and weddings). Although clothes are all the same to him, he is usually rather well-dressed since he takes the combined advice of his wife and daughter (and has the money to dress elegantly).