Nerri - Chiana's brother and leader of a resistance against the oppressive and cruel Nebari Establishment.
Varla - Leader of a special unit sent by the Establishment to "retrieve" Chiana.
Meelak - Served under Varla. And, fortunately, Nerri...
Hubero - An androgyn, Hubero was banished to a 'non-conformist colony' but escaped.
Salis - The first Establishment agent sent to retrieve Chiana, extradite from the PKs in this case.

Salis appeared in Durka Returns, Varla and Meelak in A Clockwork Nebari and Hubero in Fractures.