Death (angel of), Michael and Gabriel. Archangels. The heavy hitters. Mike there is the slayer of satan in his dragon form, we all know AofD from such hits as 'the firstborn of egypt' and 'sodom and gommorah'. Gabriel is the messenger. The host of course who sang while shepherds washed their socks. Thrones, serpahim, etc, no good lore about them as I can recall. Nephilim (not fields of), don't remember their deal except for the obvious one but maybe theres more to be read of them in the apocrypha. As for guardian angels, well thats up there with thanking jesus for a parking space, which I have seen done in sincerity.
There was that fella who touched Jacob's thigh as well:
On that night, he arose and took his two wives, his two maidservants, and his eleven sons, and he crossed over the Jabbok ford.
He took them and sent them over the river, and he sent over that which was his.
Jacob was left to his lonesome. A man wrestled with him until the break of dawn.
He saw that he was powerless against him. He struck the socket of his thigh, and the socket of Jacob's thigh was dislocated in his struggle with him.
He said, "Release me, for dawn is broken!" He said, "I will not release you, except if you bless me!"
He said to him, "What is your name?" He said, "Jacob."
He said, "Jacob will not be said as your name anymore, but Israel, for you struggled with God and with men, and you are capable!"
Jacob asked, and said, "Now, reveal your name!" He said, "Why is this, you ask for my name?" He blessed him there.
Jacob called the name of the place
Peniel, "for I have seen God face-to-face, and my soul survives."
The sun shone on him when he passed
Penuel, and he was limping over his thigh.
Verily, to this day the Israelites do not eat the 'forgotten sinew', which is over the socket of the thigh, for he struck in the socket of Jacob's thigh, in the forgotten sinew.