Official Marvel Handbook - Master Edition

Iceman
Impala
Impossibleman
In-Betweener
Inertia
Infinity
Invsible Women
Ion
Ironfist
Ironclad
Ironman
Ironman
Iron Monger
Isaac
Isis
It
Jackal
Jack Frost
Jack Of Hearts
Jack of Hearts
Jack O'Lantern
Janus
Jarella
Jemiah
Jetstream
Jigsaw
Jocasta
Jones, Rick
Jubilee
Juggernaut