Birth Name: Stephen Buck
Mutant Name: Ghost
Other Names: Step
Age: 43
Gender: Male
Physical Appearance: In life, Step could have just as easily been described as 'scruffy' or 'ruggedly handsome', although ruggedly handsome was his favourite. He stood round about 5'8"/5'9", and always had a 5 o'clock shadow, even if he'd just shaved an hour before. And with short dark brown hair with eyes to match, he did look striking. Although the grey starting to show at his temples annoyed him somewhat. He had a body of someone that was obviously not afraid of manual labour, muscular but without the 'lives in the gym' look.
[Think Cabe Gallo from Scorpion]

As a ghost, Step looks much like he did in life. Although how clear the image he gives is depends on if he wants to be seen or recognized or not. He has enough control too look from 'normal' all the way to being a shade that can only be seen from the corner of your eye.

As a zombie again Step looks as he did in life, but zombiefied.

Song most likely to be playing on his phone : The Mission - Butterfly on a Wheel
https://www.youtube.com/watch?v=Y5dXawGOIYM

Powers: Step can turn himself from a living, breathing man into a zombie, or a ghost. Changing from one to the other requires no concentration from Step and can be quite spectacular to witness.

As a ghost Step is almost intangible, Most only able to see him form the corner of the eye or in a mirror. The world cannot affect him in any way. But as a ghost Step is capable of several tricks such as moving items around (sometimes making them fly or hover), having footsteps or disturbing air currents from seeming nothingness.

As a zombie, Step is strong and tough. Just about nothing can hurt him, and the only limits of applying his strength is when his body snaps and breaks under the strain.

Weaknesses: Step has found something freeing and natural in his ghost form, returning to it when shocked or badly hurt.
Step isn't too good a driver, having learnt to drive Humvees before anything else.

Strengths:
Loyal (especially to Crystal)
Military Police Training - Trained with US army military police, training good enough to go arrest rangers and green berets without being beaten into paste.