Promo Question

[alex51324]

Fellow House-Dogs!  Your mission, should you choose to accept it, is to examine this image:
http://s7.photobucket.com/albums/y279/marykir/HL/TV/House/Season3/Promos/20070213-S3E15/?action=view¤t=promo30.jpg

And determine whether the person hugging House is Chase or Wilson.  Support your answer with specific details from the picture!