Also (just to add input)
Being a direct son of (a) god would make Cole a nephew considering lucifer Morningstar 
Also being that that character would be considered a miracle...Cole would literally be mortal around him

....kinda fun thought process there
(Literally basing most of that on the television show so yea feel free to ignore that input completely)

Edit: also not a gm just thinking about my character ^.^

Edit2: at least the way the cs is phrased
Quite possibly they could possibly have no relation

Also....would Micheal have a belly button
....and that's the que for me to sleep right there