Callum is a unique character set for M4.
Not only does Callum have a custom face morph, refined in ZBrush, but a custom morph for his hands that "pinch" and pull them as though they were suffering the effects of arthritis. Callum's face is also taken completely from photographs.
In addition to a variety of eye colors, Callum comes with many facial hair options and painted hair for his head.
Whether you need an aged Arthur, a friendly professor, distinguished aristocrat or even, perhaps, a lowly yardbird, Callum is the man for you!