As the name suggests, Panacea is a class of doctors, though "combat medic: might be a more appropriate term. they are highly skilled medical professionals, equipped with both extensive medical knowledge and combat training. though they are primarily healers, they do often assist their teams with their extensive medical knowledge in any manner they see fit, even ones that some people might consider unsavory.
Among other things, they are experts at getting rid of any evidence and are often responsible for cleanup after any missions that turned bloody. Panaceas are also experts at extracting information from less than willing subjects. though they are non-combatants, they should not be underestimated under any circumstance — such sharp equipment can double as a weapon after all.
Panacea is an unusual class in that it is used both by KAIROS and PHASe and there are no clear records of who created it first.