You can do it the simple basics or a full back story, or both if you which. Also, if you have a picture for your character feel free to post it as well.
The simple basics being. All things you can see or notice IC.
Sex:
Height:
Weight:
Eye color:
Hair color:
Age:
Visible markings:
Piercings:
Weaponry:
Ethnic background:
If you want more detailed stats, you can go on, for example
Given name: ((which is the first name))
Surname: ((last name))
Nickname:
Date of Birth:
Parents names:
Pack Ranking:
Siblings:
Personality:
Background History:
Please denote, what can be noticable IC and what can NOT be.