I would agree with chrismahon, He appears to be a very handsome crossbreed! he may have a little Sussex, Sussex/hybrid, or even commercial Rhode hybrid blood about him, Males from the sex-linked RIR X RIW laying birds that breed the little red hens that fill our intensive systems, aren't usually quite as colourful as this, so I would say he's a Healthy and happy Mongrel!
There shouldnt be too much problem mixing your broody hen with the flock male, he'll assert himself, and no doubt she'll complain noisily, especially as she's broody! but as long as he has plenty of other hens to distract him, and theres plenty of space for everyone to get out of each others way if necessary, then I can't imagine any serious problems will arise.