Make CharacterControllers in Unity not collide with each other

I'm trying to spawn a number of CharacterControllers and have them move around an area, but they keep getting stuck on each other. Is there a way to make them pass through each other while still respecting the terrain's obstructions?

From game development zaratustra

• Your best bet is to probably use rigidbodys and capsule colliders (a script to get them to behave similar to a character controller can be found here) and then use Physics.IgnoreCollision to get them to pass through each other.

  zaratustra : Physics.IgnoreCollision works with CharacterControllers, thanks.
  From Tetrad