Another descriptive and applicable word I found pertinent to Dietrich and his monkeys is: Sycophant https://www.wordnik.com/words/sycophantfrom The American Heritage® Dictionary of the English Language, 5th Edition.
noun A person who attempts to gain advantage by flattering influential people or behaving in a servile manner.
from The Century Dictionary.
noun A tale-bearer or informer in general.
noun A parasite; a mean flatterer; especially, a flatterer of princes and great men.
noun Synonyms
Parasite, Sycophant (see parasite), fawner, toady, toad-eater, flunkey.
Parasitical; servile; obsequious; sycophantic.
To give information about, or tell tales of, to gain favor; calumniate.
To play the sycophant toward; flatter meanly and officiously.
https://www.merriam-webster.com/dictionary/sycophant