(Yeah, I know, could read the books...but don't want to go into it more concerned about the changes from the books like Cache.)
Don't let my whining stop you from enjoying the books. ;) The TV series is past
Leviathan Wakes, so you're safe with that one. The more I think about the reasons for the changes, the easier it is to get over myself. I'm a big fan of
The Walking Dead (series and comics) and the series makes huge changes as well. One thing it seems both series have in common is that they interchange the roles of characters from print, just to keep us guessing. For example, in
TWD, TV Michonne has taken the role comic Andrea plays while TV Carol has taken over comic Michonne's role. TV Andrea has taken over comic Carol's role--neither survived the prison "era". TV Sasha took over comic Holly's role, etc... etc.
Errinwright is far more of a character in the show than the books. Apparently Shawn Doyle has impressed the producers to the point that they've expanded his role between series 1 and 2.
I am getting the feeling that TV Errinwright is taking over novel Jules-Pierre Mao's role going forward.
Also, will we be seeing two divergent evolutions of the Protomolecule: ie Venus and Ganymede flavors?
I was wondering about that. Looks like the Rosi picked up Gollum.