This is a list of relationships with Swellview's villains in Henry Danger. They only include villains whom Captain Man and Kid Danger have faced more than once. Villains are listed in alphabetical order by first name.
Dr. Minyak
- Dr. Minyak may possibly be Captain Man's sworn enemy, especially since he used jolly beetle tears to rid the hero of his powers.
- It is obvious Minyak hates Captain Man for his looks, having said to a henchman to "Hurt Handsome", and bringing it up again in Danger & Thunder.
- He had a camera disguised as a birthday cake sent to the Man Cave (in The Beat Goes On), hinting he either wanted to find out his and Kid Danger's identities or simply jeopardize the location of the Man Cave to the public.
- He challenged Captain Man to a Spelling Bee and demanded whoever loses must ride on a tricycle away from Swellview and back.
Drex
- Once partners, Drex turned traitor and almost destroyed Captain Man. His hatred did not stop there even after his defeat; it would carry over onto his nemesis' sidekick Kid Danger.
- Drex hoped to usurp Captain Man after his first defeat. He went as far as denying the hero the moment he received his powers and became indestructible, at the cost of a monster-like hand.
- He also sought to replace his former mentor indefinitely, by using the Omega Weapon to wipe out all of Swellview's memories of ever knowing their savior Captain Man. Thus, this makes him even more of a dangerous villain than either Dr. Minyak or the Toddler.
Drill Finger
- Prior to Substitute Teacher, Drill Finger swore revenge on Captain Man after he was arrested.
- When Captain Man broke his "drill finger" in Double Date Danger, he showed disappointment and embarrassment after the heroes said he is now called "Finger". Drill Finger said the name doesn't sound as good.
Jeff
- Captain Man (and Kid Danger) doesn't like Jeff, and it has been implied that he has sent the petty criminal to jail several times.
- Jeff also does not like Captain Man, mostly when the door to his apartment keeps getting broken by him and his sidekick.
Nurse Cohort
- Nurse Cohort in her first appearance with Dr. Minyak initially was attracted to Captain Man, calling him "handsome". However, this has not been seen again until Balloons of Doom. She may also be the reason why Minyak hates the superhero.
Rick Twitler
- Rick had been plotting for some time to rid Swellview of its heroes, starting with the theft of the poisonous cactus and leaving a calling card. He would extend this further to bait Captain Man by staging a kidnapping with help from the Beekeeper.
Toddler
- He has many reasons for hating Captain Man, but like Minyak, he finds him a very, attractive man, implying jealousy.
- The Toddler had become more aware of his nemesis' indestructibility, much like Minyak. He copied his powers through a sweat machine and drank the liquid so he could now be indestructible (for 45 minutes).
Van Del
- In the time after his defeat at the hands of Captain Man, Van Del had admitted prior to Danger & Thunder he was "Captain Man (and Kid Danger) free" for 6 months, implying he was able to commit crimes without any contact with the superhero(es) during that span.
Veronika
- Veronika hates Captain Man but likes Kid Danger. She may also be manipulative as she seemingly managed to get Kid Danger to turn against his boss.
- Even though she is a crook, Kid Danger purposely let Veronika slip away knowing they would cross paths again soon. She never finds out his real identity during their brief relationship.
Trivia
- The grudge on Captain Man between Dr. Minyak and the Toddler is at a tie because both villains hate him and are jealous of his physical appearance; and it's hard to say who is the main archrival. Both of them are continuing characters in the spin-off Danger Force.