As I'm not that familiar with Chuck Norris (I barely know who he is, I've never seen his movies), maybe I could add some "Phantom" style sayings? How about:
- 'There are times', the natives say, 'when Dan leaves the studio and walks the streets of the town as an ordinary man.'
- When Dan asks, he expects an answer.
- Cold voice of angry Dan can chill tiger's blood.
- Angry Dan is fearful to behold.
- Be wary of Dan, 'For he moves like lightning and the earth trembles with his might'.
- He moves faster than a great cat, with the power of a charging bull or elephant.
- It is said tigers freeze when the eyes of Dan blaze.
- It is terror for the evil man to awake in darkness and see Dan.
- No man can refuse the voice of Dan.
- Dan hits harder than lightning bolt.
- When Dan is rough, he is very rough.
- When Dan moves, lightning stands still.
- Some say he uproots great trees barehanded - I do not doubt it.