Minifigure, Head Alien Zombie, Black Eyebrows, Yellow Eyes, Open Mouth Showing Teeth, Dark Bluish Gray Splotches Pattern - Hollow Stud : Part 3626cpb2861 | BrickLink
Minifigure, Head Alien with White Eyes and Yellowed Teeth with One Missing Tooth Pattern (Zombie) - Hollow Stud : Part 3626cpb0752 | BrickLink
Lego Accessories Minifig, Head Zombie Yellowed Teeth with One Missing Tooth (La Petite Brique)