The best way to get to know all Bones-characters is of course, 의해 starting at the beginning of the series. If 당신 start watching in the midst of season 3 당신 will have missed out on a lot of what makes 본즈 such an incredibly great show.
If 당신 still insist on getting to know the characters in another way, Wikipedia is your safest bet:
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On the Wikipedia page 당신 will see a column (right under the introduction) that reads 'contents'.
당신 will find that in getting to know the show, it's easiest to start 의해 읽기 '2.1 Plot Summary' followed 의해 '3 Characters'.
당신 can click on names of various characters to go to their character biography page.
당신 might also like to try FOX's official 본즈 site. You'll find it under the following link:
link Again; I recommend 당신 start watching season 1 first :)
Have fun!