You can take the character to Character Composer and save the various parts of the character as well as the whole Head and Body.
Then you can add those parts to another character.
I believe that that has already been done for the Onion character if you look in the various body parts sections.
The sprites are not available for extraction and editing.
The best you could do would be to screen grab each sprites and recreate them.
Jeff
Get my Plugin Manager and TaskNotes plugins for iClone.
Check out EZColors and Other products for CTA/CA. EZColors: the easy way to change Render Styled (RS) colors!
See my CTA Tutorials on the YouTube channel CTAStepByStep