Anduriel is the fallen angel hosted by Nicodemus Archleone.
The noose has power like the Shroud, it was the same rope the Betrayer used in Jeruseeum.
He appears to manifest as Nicodemus' animated and corporeal shadow.
He was a captain of Lucifer's after the Fall. He leads the thirty Fallen who inhabit the coins.
Per Jim ButcherEdit
The author has stated that Nicodemus has no other alternate form other than his animated shadow.
- "Does Nicodemus have any alternate forms other than his shadow?
- No, He just has his shadow do things for him. You go relying on an alternate form to get things done, that still puts you in personal danger and Nicodemus is more practical than that. He'd rather stand over here and let something else kill and get the work done. Unless it's something cool like a Knight of the Cross, in that case he's still got something to prove.".
Fan Speculation Edit
It is conceivable that Anduriel was the Fallen who tricked Harry Dresden out of free will in Changes. The as-of-yet unnamed Fallen was depicted as a shadow whispering into Harry, and Uriel revealed that in addition to having millenia of experience with human behaviour this particular Fallen knew Harry's foibles and proclivities for self-blame well. However, there is alternate speculation that refutes this theory.