Full list of Angels and how to unlock?

[asiago]

There's a lot of empty spots on my angel select and I'm not sure how to get them all, or if there are hidden angels not represented on the select screen. Is there a complete list/guide anywhere?

[Morty2989]

Doesn't it tell you how to unlock them when you select the locked slot? It's almost always just 'collect X amount of green blood' or something like.