I will only do Thunderclan allegiances for the reason that I have no idea what other cats are alive at this point for other clans and it was hard enough deciding who is supposed to be alive right now, haha.
ALLEGIANCES THUNDERCLAN:
Leader: Bluestar - blue-grey she-cat with a hint of silver around her muzzle
Deputy: Redtail - a red tortoiseshell tom with a bushy ginger tail
Medicine Cat: Spottedleaf - a pretty tortoiseshell she-cat
Warriors: (toms and she-cats without kits)
Fuzzypelt - black tom with fur that stands on end and a thick-furred tail
Patchpelt - black-and-white tom with amber eyes
Adderfang - mottled dark brown tabby tom
Swiftbreeze - splotchy, tabby-and-white she-cat with yellow eyes
Lionheart - pale golden-brown tabby tom with thick fur around his neck and green eyes
Smallear - grey tom with very small ears and amber eyes
Speckletail - pale golden tabby with amber eyes
Runningwind - light brown tabby tom
Mousefur - wiry dusky brown tabby she-cat with yellow eyes
Whitestorm - a big white tom
Tigerclaw - a large, dark tabby tom with darker stripes
Darkstripe - sleek black and grey tabby tom
Apprentice: Longpaw
Runningwind - swift tabby tom
Frostfur - snow white she-cat with dark blue eyes
Apprentices: (more than six moons old, in training to become warriors)
Longpaw - pale tabby tom with dark black stripes
Queens: (she-cats expecting or nursing kits)
Robinwing - dusky brown she-cat with ginger patch on her chest and a thick-furred tail
Willowpelt - very pale grey she-cat with unusually blue eyes
Brindleface - pretty tabby she-cat
Elders: (former warriors and queens, not retired)
Halftail - big dark brown tabby tom with part of his tail missing
One-eye - pale gray she-cat. Virtually blind and deaf.
Dappletail - once pretty tortoiseshell she-cat with lovely dappled coat
Poppydawn - long-haired dark red tabby she-cat with long bushy tail and greying muzzle