Find all Managed Users

Hi,

I am trying to find all the managed users under the user that a K2 task is assigned to.

Basically, it looks like this:

Main User
|
-----> ManagedUser1
|
--------> ManagedUser2

I am trying to populate a dropdownlist with all the managed users that are underneath the main user. Including those being managed by a manageduser.

I have been trying to use the K2Rom's User.ManagedUsers, but a managed user in this case is not a user object, just a string that is the user name.

Is there a way in the K2Rom to load as user with just the FQN or Name? If not, is polling Active Directory the normal way of doing something like this?

Thanks,

-Jon