Can you clarify the context in which the question "What race is Riddick?" arises? Is Riddick a character from a movie, book, video game, or some other media? Without that information, it's difficult to give a precise answer. However, if we're speaking in a general sense and assuming Riddick is a fictional character, the answer would depend on the creative vision of the author or creators.
In some works of fiction, characters may belong to distinct races with specific traits and cultural backgrounds, while in others, race may not be a defining characteristic. If Riddick is a character from a work where race is a significant factor, the answer to your question would likely be found within the narrative or through research into the work's background and commentary.
In summary, without knowing the specific context and source of the character Riddick, it's impossible to definitively answer the question "What race is Riddick?" in a concise manner.