Well, i don't think the guy in Amsterdam is Pinheads son, he's too ugly.
Maybe an adoption...
But it's quite obvious the little rascal is Pinheads son, he wears the same cloths, that's an evidence.
Though where is the mother? Was it an immaculate conception? I think so!
Toystorylab on Vimeo : Crassitudes (my "Alter Ego") on Youtube: