look on (someone or something) as (something)
To view someone or something in a certain way. I've always looked on him as a genius, so I'm not surprised to hear about his scientific breakthrough.
look (up)on someone or something as something
to view someone or something as something; to consider someone or something to be something. I look upon Todd as a fine and helpful guy. I look on these requests as an annoyance.
look on someone as something
to view or think of someone as something. I look on you as a very thoughtful person. Mary looked on Jane as a good friend.