Khan- your character Khazna is not low tiered. You have some low tier stuff, but your high tier abilities far offset them to such a degree they bump this character to intermediate. I am going to tag it as an intermediate character. 

Melonhead- your character Jack Alder has a nice selection of powers, Although he has intermediate powers he is a low-tiered character with some exceptional skills. 

Asuras- Mercedes Kane is a good low tier character, I like her and I am looking forward to seeing her potentially teaming with Jack Alder.
 
LeeRoy- Keezheekoni, the Aspect of Phlogiston (Calls herself Keezi). Good low tiered character, I think this character will be fun to watch. 

ImportantNobody- Blank 1-C (often called Onesie). Ok good low tier go fight someone with her, preferably not insane elves.