These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Chronicles of Riddick
Works in this franchise with their own YMMV pages:
In Assault on Dark Athena, Captain Gale Revas is the commanding officer of the mercenary ship the Dark Athena. She was taken in by her current second-in-command Spinner, and joined the crew in her teens. She seduced the original captain, then had him overthrown and thrown in a cell. She refitted the ship so they would attack unsuspecting vessels and settler worlds. The planetary assaults are complete Rape, Pillage, and Burn, with unarmed civilians being indiscriminately killed and tossed in sewers, the settlements wiped out, and the survivors harvested into mindless remote-controlled cyborgs, openly called out as a Fate Worse Than Death. The ship also functions as a slave vessel, with decks upon decks of prisons with people her mercenaries captured, locked up until they can sell them or convert them into cyborgs. She keeps the crew in line with threats of sending them to the Drone Mile (cyborg conversion) or trips to "the Dentist". She personally tries to murder a child twice, and doesn't show any interest in people besides using some good-looking mercenaries as her sex toys. It's said that she grew up in the slums where she had to learn to survive, but considering her later crimes it falls a bit short as a Freudian Excuse.
Also from Dark Athena, Jaylor is an utterly sadistic former member of Revas's crew who simply indulged in rape and murder to the point that he freaked out all the other mercs, before he was stripped of his rank and thrown in a cell for his crimes. The moment Riddick meets him he seems friendly until he reveals that it's just a smokescreen. He blackmails Riddick into killing the mercenary who turned him in to get revenge, and to retrieve one of his golden teeth so Jaylor has evidence that the guy is dead and has a souvenir of the dearly departed. Jaylor continuously expresses interest in raping a female prisoner a few cells down the line, and when Riddick refuses to "rile here up" for him, he promises that as soon as the prisoner riot starts, he'll kill her, THEN rape her. He's a necrophiliac rapist and murderer, and such a piece of complete scum that the other mercs were disgusted by him. He later kills the woman in front of her little daughter, and gloats about it to Riddick before he gets killed by him.
Antonia Chillingsworth from Dark Fury is the bounty hunter in charge of the mercenary vessel that Riddick, Jack, and Imam run into. She's obsessed with the art of killing and death, while her primary hobby is to collect criminals and notorious fighters to place them in her collection of living statues. There they are frozen so that it takes them a whole day to so much as blink an eye, and they're conscious the whole time, trapped in a nightmare world for hundreds of years to come. She considers this her "artwork", and intends it purely for her own enjoyment. She cares exactly nothing about all the members of her crew she sends against Riddick and die as a result, just that she apparently paid them too much. She wants to make Riddick the latest addition to her collection, and before adding him to the exhibition she throws him and his friends in a pit with people-eating monsters to see him kill something up close. Riddick himself calls her an irredeemable psychopath. The fact that the person saying this is himself pretty much a sociopathic Noble Demon says it all, really.
Draco in Leather Pants: Richard B. Riddick. Central character, yes. Hero, no. Even as he's deepened and made more sympathetic, humanised even, as it becomes clear he admires honesty, bravery and honor, he's bent on his own survival. And none of that takes away from the fact that he is a murderer with serious mental issues, and he's only given more. He has a third film planned. Apparently it involves revenge. Seriously girls, he's not your type.
Evil Is Sexy: Riddick and sexy are synonymous with each other, but the evil part depends on the viewer.
Narm: Count how many times Riddick takes his goggles off in dramatic moments in Chronicles. It's nearly impossible not to start giggling after a while. The odd part is, in Pitch Black, it's revealed that his night vision makes his eyes sensitive to light so he needs the goggles. In the sequel, this weakness is apparently gone since he whips them off every other scene, including one in which he gazes at explosions.
What the Hell, Casting Agency?: Dame Judi Dench? Really? More details rescued from that page: Chronicles made some fans wonder "What the hell is Judi Dench doing in this film?" Vin Diesel wanted her so much, he sent a humongous number of flowers and bouquets along with the scripts to convince her. She complied after they met and bonded over Dungeons & Dragons (they both play).
Justified as the role was designed specifically for her by Vin Diesel and David Twohy. Word of God on either the DVD commentary or the "extras" subtitle track.