Shadow is a main character features in the Sonic the Hedgehog series, and has even starred in his own game titled "Shadow the Hedgehog". He usually secludes himself from others, but will do what he can to protect the planet that Maria loved. He also works for the government on several occasions with Rouge and Omega.

He is usually cold and collective, but tends to lend a hand when he's needed. He usually prefers to work alone so that others don't slow him down.