Firiona Vie uses the Half Elf Female voice in Raj'Dur Plateaus. Other instances of her seem to mostly use Tranquil.
Nairion in Takish Badlands is also using Half Elf Male, at least he is on his version at Hu Haket. I wasn't listening closely when speaking to him at the base camp to say which that one was using.. In other instances so far I think he was using "Wizened".