Image Item No. Description By  3626  Minifigure, Head (Plain) Catalog: Parts: Minifigure, Head 66  3626a  Minifigure, Head (Plain) - Solid Stud Catalog: Parts: Minifigure, Head 23  3626bpx79  Minifigure, Head Alien with Blue Eye Mask Large, Red Dot Pattern - Blocked Open Stud Catalog: Parts: Minifigure, Head 2  3626cpb2161  Minifigure, Head Glasses Wire Frame with Trimmed Beard Pattern (Will.i.am) - Hollow Stud Catalog: Parts: Minifigure, Head 1