Bauhaus

-Dragon ambassador to Equestria. Lives in the delegates housing, but he splits his time between the housing and  nearby volcano. 

-He has two children, one goth like him, one not goth at all. He loves and accepts both of them equally.  Single father, willing to open his heart to a nice goth dragon who loves his kids as much as he does. 

-His wife left him before the eggs hatched, so he's raised them on his own.

-He's intimidating and scary when he's working, because he has to be serious and focus on work, but he's actually a goofy and slightly embarrassing dad who just loves to make his kids laugh (or groan.) with his bad puns and silly antics. 

-He's at his most terrifying when protecting his kids, though, and he  can be very dangerous.