The official party line when the Wolf & Raven stories got republished in novel form (They originally appeared in Challenge and White Wolf magazine, I believe, several of them before SR1 was released) is that Wolf is a Physical Adept who followed a shamanic totem (Wolf, natch). he was not a caster in any form, he just followed a Totem and thus had a Wolf Shamanic Mask that manifested when he used his abilities.
I loved the concept, and I've been pushing to have it injected as a fully realized idea into Shadowrun for years now.