The Amazon Prime Original Invincible, which was adapted from the comic series of the same name, took the world by storm. Quickly receiving the go ahead for another two seasons, the show also stuck with me, as I binged the entire thing in one sitting, unable to free myself from its grasp. Through season 1 there is but 1 undead, this being The Immortal, however his undeath doesn't come about due to his own powers as the name may imply.
Filling the super-over-powered role, most commonly understood as a Superman role, in the Guardians of the Globe, The Immortal has super speed, strength, durability, along with the ability to fly. His spook factor, when brought back from death, is ample due to the pure rage he exhibits upon his awakening, however his design is that of a superhero, and so falls into a 5/10.
The danger of this toned-down Superman is still hefty. 8/10.
Transform will be a 0. There is no determinable change from The Immortal before and after his rebirth, only that he is angrier.
The name is fitting for an undead character, which makes it all the more funny his powers have nothing to do with coming back to life, instead he just lives forever. 7/10.