Name: Erik Magnus Lehnsherr
Real Name: Max Eisenhardt
Age: Exact Unknown
Apparent Age: Mid 30s
Height: 6'2" / 1.88 m
Weight: 190 lbs / 86.18 kgs
Hair: White
Eyes: Blue

Unusual Features: Magneto was reduced to infancy and then restored to the body of a young man in his prime.  So, despite having been alive during WWII, he currently appears to be a man in his mid to late 30s.