A Station Eight Fan Web Site
I'm not sure if this was ever asked but did Angela tell her Rookery siblings that Demona was her mother, If so where they in shock about it?
Well, they didn't really know Demona, except as that garg who attacked them while under a spell. So it held less significance from an "oh my god, Demona!" standpoint.
Also, I'm sure they all have mixed feelings about the whole biological parenting thing. I'm not sure that Angela did tell them that Goliath was her biological father. That would seem too much like unseemly bragging. (So maybe for that reason alone, she didn't mention Demona either.) At any rate, they all would have thought of Goliath and Demona as Clan Parents.