Interesting that an Angel of Death would be called Samuel. Anyone remember when Saul went to the Witch of Endor?
1 Samuel 28:8-
'So Saul disguised himself, putting on other clothes, and at night he and two men went to the woman. "Consult a spirit for me," he said, "and bring up for me the one I name."'

Notice, that part where Saul says, "the one I name." That name for that spirit came from men, and not the real authority.
1 Samuel 28:11-
Then the woman asked, "Whom shall I bring up for you?" "Bring up Samuel," he said.

This is the work of men, whose hearts are evil.
When a man dies, his soul goes to heaven or hell (based on his response to Christ). The prophet Samuel's body died, but was eternally alive in Heaven. So Saul went to someone who conjures eternal beings (spirits), and asked for the dead. Big mistake. Of course a spiritual being condemned to die with this world is going to call himself "Samuel." He'll call himself whatever he needs to so long as he can convince someone to look to the source of death for the answers. A person who listens to that before Christ, will die eternally.
If I recall, Saul's actions made God pretty upset. I bet one of these spirits would even call itself "Paul" or "Abraham". Dare I say the day will come where it will call itself "Christ". When a man claims this "Christ's" identity, we will have an antichrist. Maybe The antichrist.
In Revelation 13 it talks about a beast with ten horns, with ten crowns on its horns. "Written on each head were names that blasphemed God." I reckon one of those names written would say "Emma," another, "Samuel" and so on.
Following these "angels" is a terrible mistake to make. Please, look to scripture before the voice of men or angels. Please.