I'm sure there are a bunch more, but I'll start with this...
The Legion of Extraordinary Gentlemen
Sherlock Holmes - Brainiac 5
Mr. Hyde - Timberwolf
Hawley Griffin - Invisible Kid
Gulliver - Colossal Boy
Iron Warrior - Ferro Lad
Orlando - Chameleon
Nycalope - Shadow Lass
Porthos, Athos, Aramis - Triplicate Girl