Tumult

Stun must qualify surely, Force lift does seem to incapacitate as the target is unable to take action, but the target could be too high in the air to kick, but this is a game so they could ignore that :)

also the [Kinetic Collapse] adv skill states that it incapacitates so I assume that will work too, the Dark side equivalent to this states that it "blinds" the enemy so assuming the spells are balanced equally then blind effect would also count as incapacitated, we don't have a blind but could be useful to combo with another classes blind.
[Force Wake] 5 second root probably won't work though, it is listed as an immobilize

Edit: apparently this does not work in PvP..

From my personal experience:

• Mind Maze qualifies.
• Force Stun qualifies.
• Force Lift qualifies.
• Holiday qualifies. Since she'll typically "attack" your first target during a pull, pause after your opening sequence so that you don't break the daze due to lag. Wait for the victim's eyes to glaze over, then Tumult to the face. This makes it easy to use on Strong mobs, even while tanking.
• The stun after a Project qualifies, but the target must be weak or standard to be stunned in the first place.

There are some more but that'll do for new Tumult users to get started.

Incapacitation refers to any kind of stun ability, however brief. For example the short stun applied to normal targets after being hit by project counts. Crowd Control abilities like lift do not count as incapacitation. It is a great finishing move after you've hit a target with project.

This ability is not usable against players.

Never got high enough lvl to use it myself, depends on the damage of course, can't trust the torhead numbers right now (at time of writing: 3753-3906 (weak/standard) . 2712-2865(strong/PvP)
could be fun with [Force potency /-/ Stun /-/ Tumult before stun is 'escaped' /-/ Project] hoping for crits for both spells
I can see players using this to humiliate their opponents, stunning them at very low hp then kicking them to death for fun, I hope the enimation is good :)
Edit: apparently this does not work in PvP..

Edit: Force stun does damage so if casted after force potency it might use one of the charges up, will have to Stun first then quickly press force potency while the GCD is going, followed by a kick

Just noticed the CD is noted at 45 seconds, that is huge, makes me think the damage numbers could be accurate after all