Because someone shows up in a magazine does not mean you can take their picture and use it however you want.
Brad Pitt shows up in magazines regularly and you can take just about any picture of him and use them because he is a celebrity. Just don't sneak in to his bathroom and take a picture of him in the shower. You may make more money from the picture than you would spend on the lawsuit and damages but I doubt it.
Model X also shows up in magazines but unless model X is a super famous model, I wouldn't take model X's picture and publish it with no compensation to the model. After all, it is the way models make a living.
That was my answer to what I think is a badly asked question.
My serious answer: No.
Any image (photo or otherwise) in a magazine, newspaper, ad, etc, etc, is copyrighted. And to use it you would have to pay a usage fee.
There is only one way to use such an image for free: in a collage.
I cannot tell you what today's collages rules are (it's been too long) but they were based on the percentage of the original image used. Past a certain percentage (and it was not very big), it was not a collage.
You have two options: research today's collage rules very carefully or don't use someone else's image.