Verispex strikes me more of a seeker personally, but that's what's nice about the role system you can use both.
Back when work started on DH2, I was lined up to write the character creation section. It never went far - other issues in my life forced me to part ways with FFG at that point, so someone else took my place on the project - but I do recall making notes on how each given combination of Background and Role could play out. The thought exercise itself, though it never came to anything practical, was an enlightening one for the range of interesting and unusual combinations that resulted in really evocative concepts.
I'm not sure where that notebook is now - I've moved house since then - but the idea's a solid one. You can already combine any background with any role, so thinking about what an Administratum Warrior or an Adeptus Astra Telepathica Seeker could be is a great way to explore the background.