One of the scariest secrets in Baldur’s Gate 3 becomes apparent at the beginning of Act 3 when you realize one of your allies from camp is replaced by a doppelganger. To root out this infiltrator and save your actual companion, you must find the real identity of the doppelganger in BG3.
How to find the doppelganger in Bg3
In Wyrm’s Rock Fortress, you will meet Lord Enver Gortash for the first time. He will welcome you as if you are his old friend, and a dialogue sequence will follow. During the dialogues, he will ask you to make an alliance with him. He needs your help in getting Orin’s Netherstone. To persuade you, as a gesture of goodwill, Lord Enver will reveal that one of your party members has been kidnapped by Orin and replaced by a doppelganger in camp in BG3,
Whether you accept Gortash’s deal or not, he still won’t be able to tell you which companion has been replaced by a doppelganger. You will have to investigate that yourself. You can talk to everyone about this, but this will not lead you anywhere.
To find out who the imposter in your camp is in BG3, you need to go to the Sewers in the Lower City. Once you enter the sewers, Orin will appear as one of your party members, which can be anyone.
Who is the doppelganger in your camp in Baldur’s Gate 3?
Orin is the doppelganger in BG3 who has abducted and taken the shape of a camp resident. Honestly, this ally from the camp that Orin took can be anyone. A common consensus is that the party member you have the least interaction with (or have their least approval) will be replaced by Orin as their Doppelganger.
In my first playthrough of BG3, Orin replaced Lae’zel in the camp as her doppelganger. The second time, it was Yenna, the orphan kid you meet at the start of Act 3 once you enter Rivington.
So basically, anyone you travel with, whether it is a party member or someone who lives at your camp, like Alfira or Yenna, can be replaced by Orin. Until Orin appears before you in the sewers of Lower City and reveals it herself, there is no way you can find the identity of the doppelganger in Baldur’s Gate 3.
Once Orin reveals which companion was the doppelganger in BG3, she will try to convince you to help her by killing Lord Enver Gortash. In return, Orin will help you free your camp member. If you don’t accept Orin’s offer, a new quest will be added to your journal in which you must save the companion yourself.
How to save your ally from Orin in BG3
To save your ally from the doppelganger Orin in BG3, go to the Temple of Bhaal. You will find your real party member captured by Orin and chained with a stone. Some people will be performing a ritual. When you confront Orin, choose to fight her. If you fail the dice roll, she will kill your party member immediately. It is wise to save before the fight; save scumming in case you fail to pass the dice roll.
Once the fight begins, you must defeat Orin as soon as possible. If the ritual is completed and you have not defeated Orin till then, your ally, replaced by the doppelganger, will die.