Olivia

Olivia Gladstone is an unlockable Agent as part of the Contingency Plan DLC. She is unlocked the first time you play with the purchased Contingency Plan DLC enabled.

Strategy
Maxing out Strength and installing Titanium Rods both increase KO damage, and therefore Olivia's power gain when KOing guards with her Ambient Turbine. If you really want to exploit the game, you can assemble a Volt Disrupter 3, Stim IV, Predictive Brawling, Titanium Rods and max Strength on Olivia to generate unlimited AP by repeatedly zapping a downed guard, costing and generating 5 PWR each time. If you started with On-File Nika, the combination works even better with Nika's Volt Disrupter, actually getting you ahead on PWR with each hit.