You have a bully, but you never said if you had tried them on him or
not.
Maybe he will cut them some slack?

Hi Rose,

I would probably wait a little while longer until they are a bit bigger.
 I would rather err on the side of caution if you have a bully in the
house.

We introduced our kitten family to the other 4 cats when they were about
4 months old (they had the whole family room to roam.) We would at first
just open the door and let them sniff noses a little. The next night we
let them come out into the room for a short time. There was a lot of
running back to home base (the family room.)

Our other cats are pretty mellow, but there was some hissing at first.
We just did very short introductions until we felt better about it.
After they were okay for a few hours together, we would still close them
up at night when we weren't there to watch.

Good luck!

Rhonda

Be sure to clip his claws. Of course he can bite too, but they do
major damage with their claws. Clipping his claws will put him at a
distinct disadvantage against cats near his weight class. I'm sure it
will help reduce injury to any other cats. That is the first thing I
consider when dealing with a bully.

Rose, kittens are usually easy to integrate into a clowder.  They *know*
they are the lowest in hierarchy, and when they are confronted by an
older/bigger cat they will roll over and "cry uncle".  While I would
definitely keep an eye on them as they interact with the other cats just to
be safe, I have *never* seen an older cat hurt a kitten.

It's instinctual for a cat to stop attacking a kitten when the kitten gives
out a high-pitched "mew" - in fact that's how I've always gotten kittens to
stop biting or scratching *me* before they get into that bad habit (try this
with your new kittens - get them to bite your hand and, when they do, give
out a loud, high-pitched "mew" and watch how they will immediately stop and
draw away).

I have what has to be the meanest cat on the planet (her nickname is "bitch
cat from hell").  This cat, at 6 weeks old, launched herself onto the face
of a pit-bull and latched her front claws behind is ears and her back claws
under his chin and proceeded to bite him about the forehead while he howled
and shook his head back and forth trying to shake her off (and when he did
manage to detach her she chased him home with his tail tucked between his
legs).  I always warn guests to stay away from her, but one guys, who owned
large dogs, scoffed at that.  He waited until my husband and I were out of
the room and then walked over to where she was laying under the coffee table
and poked at her with his foot.  My husband and I heard yowling (she sounds
just like a cougar) and screaming and ran back into the living room to see
this guy standing on the backrest of our couch, hugging the wall, and
screaming, "Get her away from me, get her away from me!".

None of my other adult cats can get anywhere near her without being
attacked.

When we got Sammy, *this* is how they interacted:
http://www.gcmensa.org/sammy2/DCP_1452.jpg
and
http://www.gcmensa.org/sammy2/DCP_1453.jpg
and
http://www.gcmensa.org/sammy2/DCP_1451.jpg

But they ended up like this:
http://www.possibleplaces.com/CatNipped/Sammy1/DCP_1432.jpg

Hugs,

CatNipped