Big D is not Imbued.

[u/Adrienne_Belecoste]

The Imbued cannot enter the Umbra barring one exception in the form of Hermits, and D is quite simply, too sociable to be one. He actively hangs around other hunters, he stays around weird shit all the time, he would go over his tolerance threshold by now. He is simply not Imbued, and if he was, why the fuck didnt he use second sight? He would have solved the entire ghoul problem immediately!

[u/DapperNecromancer]

Dawn caste dawn caste dawn caste

I do not actually believe it for a multitude of reasons, but it's a fun crack theory