All characters are bytes. This sentence is full of characters that are bytes.

The only thing that might be throwing you is that some bytes don't have character representations. Go search on 'ASCII table', and you'll see that out of the 256 posible values a byte can hold, some are what you'd think of as 'printable' (for lack of a better word) characters and some are not.

If that doesn't answer your question, you'll need to post more context so we can understand the situation. But essentially: bytes eq characters.