Hey Woozy,
This works for me:
select emp.EMPLOYEE from LMHCM.hcm.EMPLOYEE emp inner join LMHCM.hcm.AGENT agent on (emp.UNIQUEID = agent.BORBUSINESSOBJECTKEY) inner join LMHCM.hcm.PARENTAGENT pagent on (agent.PARENTAGENT = pagent.PARENTAGENT) where pagent.ACTOR = 'ACTOR_ID'
Your mileage may vary, but works 100% on our build.
Also assumes your employee is completely set up - Actor, Agent, and agent attached to it's proper actor agent. if actor is not attached yet, this won't work.
-Peter