FatherEarth

I apologize if this question has been asked and answered, or if there is a guide that pertains to this (haven't found one) but is there a way to get anyone other than bosses to say random things? I'd love to use the minions to drop clues and hints about the overall story arc.

If not, must you use bosses for this? It appears you can have multiple "bosses", but do they all have to have "boss"-like difficult?