I'm not a fan of Cyc's but I know he has a third brother name Vulcan who's a beast and Sinister revealed that Gambit is his other half brother.
Gambit at one point could have been a beast but he gave up some of his powers because he couldn't control it.
Havoc is his younger brother but dude is wack as shit. His son is one of the most powerful mutants Nate Grey/X-Man.
0 • •