1) Black metal 2) Black Mirror episode 3) Fictional robot 4) Ronnie James Dio fan 5) Sabbath follower 1) Robot 
[Teenage Mutant Ninja Turtles] Metalhead is the 5th ninja turtle of the Teenage Mutant Ninja Turtles franchise, His colored mask is yellow. It also refers to a completely different character(albeit spelled separately as `Metal Head`), who is a superhero with manipulative metal hair and a member of the Justice Force from the Mirage comics an...