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Do any of the "standard" groups include just things you would expect to find in a haunted graveyard (skellies, zombies, ghosts, vamps etc)? I have a thought for part of an arc and was wondering. I know you can make custom zombies but not sure about the others.
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Short answer: Yes
Long Answer: Here is an incomplete list of places to look.
1) Banished Pantheon - Zombies & Witchdoctors
2) Circle of Thorns - Anything with the word "Spectral" in it.
3) Council - Werewolves & Vampyres.
There are other ghosts that are available from the ghost pirate ship, as well as custom arc ghosts - I'm not sure if those are available as content.
Several Praetorian groups feature werewolves & ghosties.
Nosferatu is a vamyre AV. Adamaster is a zombies AV/GM. I'm not currently aware of a way to access the Nerva Spectral GM (Caleb), or any type of Werewolf AV.
Why do I do do do things I do
Nobody was ever there for me to talk to
Once I was youngster, pure and true
Now I'm running with a sick, sick crew.
Also...anything from Croatoa is a good choice.
The Cabal are all witches.
Redcaps......are redcaps......
The Fir Bolg are pumpkinhead guys.
The Tuatha de Dannan are basically bipedal moose...meh.
Why do I do do do things I do
Nobody was ever there for me to talk to
Once I was youngster, pure and true
Now I'm running with a sick, sick crew.
There is a standard group named <Ghosts> which is populated entirely by translucent civilians that fire skulls out of their hands.
Cool, thanks for the ideas. Now to just have time to create the mish and test it out. 
Oh darn, read the title and thought someone was calling me and my posse
Depends, are you on call for mission work?
Do any of the "standard" groups include just things you would expect to find in a haunted graveyard (skellies, zombies, ghosts, vamps etc)? I have a thought for part of an arc and was wondering. I know you can make custom zombies but not sure about the others.