Talion's mind hax at the beginning (i.e. his 8a profile) is limited to reading minds, which requires physical contact, and causing fear (via his drain skill), which does not require physical contact. His mind control doesn't become available until over halfway through the game, so I doubt that is included in the 8a profile. The teleport does become available in the first half of the game, and can probably be used, but it needs a living target for him to teleport to.
The only real question is if either of his two early ranged abilities or his wraith stun ability can hit a ghost (I haven't played the second game, so I don't know if he does this there, he doesn't face any non corporeal enemies in the first game). The bow is his more powerful ranged attack, and the arrows it uses are replenished by literally draining some form of energy from his enemies, and are not physical arrows. Unless these are shown hitting something non-corporeal in the second game then I doubt they can be considered effective against Spooky.
The second ranged attack he has is his short range version of Drain. This temporarily incapacitates and deals damage to a single enemy, although some enemies are immune. There is no obvious physical injury caused, yet it can kill most enemies in 2-4 uses, as well as apparently causing both pain and fear to the victim. It replenishes arrows, and so can be assumed to be removing some sort of energy from the victim. Again, not having played the second game I don't know if this can be used against non-corporeal enemies, but on the information I have available I can't say it will.
A *possible* third ranged attack is his specialised "ghost" throwing dagger, available as an ability but not gained by going through the story (and also not required by any side missions or bonus objectives, from memory). Again, the projectile itself is not physical but it is only used against physical enemies, and since it is optional and does not have any function outside giving Talion a short range attack that doesn't either take too long when in trouble or run out of ammunition, I don't think it really matters to the discussion.
Until at least one of these is confirmed to be able to hit ghosts, Talion can't even attack her in his 8A form.