Families and groups of characters that are closely related hold a special place in Suikoden history. Lineage and relationships are especially important.
The McDohl family has been in the service of the Scarlet Moon Empire (currently the Toran Republic) since the War of Succession.
The Blight family has been the ruling family in Highland since they separated from Harmonia.
The Silverberg family is the most important family within the Suikoden series, mostly due to their role as military strategists on both sides of conflicts.
The Howling Voice Guild has played an important part in Harmonian politics due to their immense power.
Vampires and their hunters have made a profound impact on the Suikoden world.
The Windamier Family has been in service of the Highland Empire and is esteemed for their service.