A couple years ago, I wrote up Martin de Vries in Street Legends; those stats were recently republished in Storm Front.
And there were a couple of boo-boos I committed therein, due to not noticing a couple of things in my research. I left out a couple of spells he's used, and a skill he demonstrated.
Add "Leadership 3" to his list of skills. Add "Improved Invisibility" and "Levitate" to his list of spells. I've run this past Jason Hardy and he's cool with me posting it. This errata will be reflected in the SR5 conversion promised in Storm Front (which is what I'm working on now, and the reason I noticed this in the first place). A link to a Google doc with these changes will be added to my sig at some point; in the meantime, here it is.
Unofficial Errata for Martin de Vries in Street Legends.