I want to search for an actor using its externalId.identifier
It might happen that in different records actor is named differently e.g. Dmitry V. Kotov and Dmitry Kotov but has the same identifier. But when I'm looking for an actor I can only search using it's name not identifier. So when an entry for Dmitry V. Kotov exists, and I look for "Dmitry Kotov" I will not have a match.