FAQ

Caitlin was left in the future, and they will never mention her again, according to Tim Kring. Due to the writers strike, they scrapped the idea of getting her back.

She may not return to the series but there are many theories of time that could've happened to Caitlin.

1, Positive Theory) It's possible that after Peter destroyed the Shandi Virus he altered the future and the 2008 he left her in changed around her into the real 2008 instead of the virus ridden one. Like in Back to the Future II when Marty and Doc left Jennifer and Einstein (the dog) in the alternate 1985, changed the past, and it changed around them. So she could be in New York somewhere but Peter just never met up with her due to his brother getting shot and the events of season 3.

2, Negative Theory) When Peter destroyed the virus he may have destroyed the future he left her in and she is trapped in that future forever.

Volume 4 is the second half of season 3 consisting of 12 episodes. Volume 3 was the first half (13 episodes). It was split so there wasn't a big expectation for the volume finale.

Niki was her own person when she was younger. She had a sister named Jessica. Jessica had the ability of super-strength, and it is unclear whether or not Niki had a power herself. After Jessica was killed by her father as a child, she was able to enter the mind (more likely the subconscious) of Niki. As Niki got older, Jessica learned how to take over the body of Niki, making a sort of split personality. Jessica, using Niki's body, was still able to use the super-strength she had originally. Niki and Jessica could not come to terms throughout the first season, until the very last few episodes. At this time they were able to accept each other and "merge minds" into one stable being. At this time it seems that Niki's mind in control, but has the super-strength of Jessica.

Another view on this would be that Niki realized as a child that her father was responsible for the death of her sister, and suppressed it, causing multiple personality disorder later in life. Though only "Jessica" has the super strength, it would be safe to assume that both sisters (were both still alive) would each have super strength. "Jessica" has the super strength and Niki doesn't simply because Niki doesn't know how to use it, but "Jessica" does (kind of like Peter having to learn how to use his powers). In other words, both personalities are just as physically capable of using the strength, but only "Jessica" knows how.

To add to this other view, it has been confirmed by Bob (from "The Company") that Niki's stress caused a fracture in herself, creating multiple personalities. This means Jessica does not possess Niki, as she is just one of Niki's personalities. We later see "Gina," another personality emerge in the episode "Four Months Ago." According to Bob, this happens sometimes, which leads us to believe that Niki's power is the strength alone, and the personalities is an affliction. It could possibly affect any of the heroes.

The effect on other "heroes" could be further speculated in Season 2, with Nathan looking into a mirror and seeing a horribly scarred version of himself.

Another viewer has his own view: Niki's ability is super strength. Jessica possesses the power of 'astral projection', and when she died, her only way to survive was to move her consciousness into Niki's body. Niki was unaware of her own power of super strength until she discovered Jessica utilizing it to protect Niki, which apparently was the basis of their relationship when both were alive. Only at the end of season 1 was it revealed that the strength was Niki's power, not Jessica's, when Niki had to fight 'Candice', who used her power of illusion to make Niki think she was fighting Jessica. Niki saw Jessica in a piece of broken mirror when Jessica told her "you're the strong one". Whether or not they are twins has yet to be revealed, as names were mentioned for triplets - Niki, Tracy and Barbara, the latter of which has not been introduced (unless Barbara was actually Jessica, going by her middle name, maybe?).

In conclusion, there's no consensus on what was the exact ability of each sister, neither if they were twins.

Gabriel Gray (Zachary Quinto) -- self-dubbed "Sylar." The most prominent villain of the first season, responsible for hunting down and killing other people with powers. He was contacted by Suresh, who hoped to discover some inherent power. When Sylar was rejected by Suresh, he sought to make himself special. Calling on his experience as a watchmaker, he murdered a man who proved to have telekinesis and dissected his brain. He acquired the power of telekinesis and has used his power to murder others. It is conjectured that he can acquire other powers by dissecting the brains of people who possess powers. Due to contracting the disease currently assaulting those with powers, he is currently unable to use any abilities, though he is not aware of this and believes he may have lost them during the fight at the end of season 1. It is unknown if he can still obtain new powers while in this state, as he attempted to do so with Candice (Michelle) while under capture by the company after the events of season 1.

Ted Sprague (Matthew John Armstrong) -- debuted on the show as a possible villain, possessing the ability to become radioactive when experiencing heightened states of emotion. He was responsible for the death of a doctor, but Matt discovered that Ted accidentally killed him with the use of his power. At the time of his death in "The Hard Part," the only villainous act Ted committed was holding the Bennett family hostage in their home. Ted was in FBI custody for the second time when Sylar killed him in order to appropriate his power.

Daniel Linderman (Malcolm McDowell) -- Casino owner/mob boss who knows about powers and collects Isaac's paintings, is very probably a villain. He has manipulative power over Niki and D.L., and strong connections with Nathan Petrelli and his late father. As of "Landslide," he is dead ( or so we are led to believe).

During the first season, Noah Bennet initially seemed to be a villain, but now the real villain behind his mysterious actions seems to be "The Company," which includes Thompson (Eric Roberts), (perhaps formerly) Kaito Nakamura, Linderman, (formerly) Eden, and Candice Wilmer (AKA Michelle) (Missy Peregrym). During the second season, the company has different members/new members introduced that were present but not seen in Season 1. These include Ivan (Bennet's old mentor), Bob Bishop (Stephen Tobolowsky), and his daughter, a lightning-powered girl named Elle Bishop (Kristen Bell). Also, Niki seems to join "The Company," and Mohinder infiltrates "The Company" (although his allegiances seem to actually swing towards joining "The Company"). (Note: In the second season, it is easy to question whether "The Company" is truly an evil organization after the death of Linderman.)

Maury Parkman (Alan Blumenfeld) -- Matt Parkman's father, referred to by Molly Walker as "Nightmare Man." Revealed so far is the fact that he can see Molly when she attempts to look for him with her powers and appears frequently in her nightmares. It has been suggested that his powers allow him to enter the minds of others, though he chooses to do so through dreams. He is living in squalor when Matt and Nathan track him down, but the group photo of The Twelve seems to have been taken only a few years prior, and all pictured seem to suggest all twelve had a fairly high class of living. Maury traps Matt and Nathan in nightmares to get away from them. He is mentioned as being one of Adam Monroe's supporters before The Twelve broke up. He is presumably behind the attack on Angela while she is in police custody for the murder of Kaito Nakamura. He later convinces Niki to kill Bob Bishop while inside Company Headquarters before Matt is able to trap him inside his own nightmare and freeing Molly at the same time. This breaks Maury's hold on Niki and thereby saving Bob as well.

Takezo Kensei/Adam Monroe (David Anders) -- Hiro's idol, who turned against Hiro when his love, Yaeko, fell in love with everyone's favorite "SuperHiro." Despite his regenerative abilities, he was believed to have been destroyed in an explosion that occured after the two fought. However, his powers appear to not only include regeneration, but also immortality. Kensei is revealed to be the true identity of "Adam Monroe," the mastermind who is attempting to kill all of his old partners, which he begins by attacking Kaito Nakamura by shoving him off the roof of the Deveaux Building in front of Ando. Ando rushes to the side, but only sees Kaito's body and two large pools of blood on the sidewalk. Angela Petrelli later falsely admits to the murder (possibly to protect herself from Adam), and in doing so, she reveals she and Kaito once had an affair.

Arthur Petrelli (Robert Forster) -- Father of Nathan and Peter Petrelli and husband of Angela Petrelli. Thought to have been dead, he returns in full power by taking Adam Monroe's power of cellular regeneration/immortality in Volume 3, "Villains". Arthur's ability has been described as a version 1.0 of Peter's ability. Peter has empathic mimicry and can take on the abilities of others while they still retain their abilities. Arthur just takes others' abilities. As the head of Pinehurst, Arthur is working to create a formula that would let anyone who wanted an ability to get an ability. In Volume 3, Peter and others are working to prevent that from happening.

Emile Danko (Zeljko Ivanek) -- In Volume 4, "Fugitives", Nathan turns against his own kind and becomes a villain, along with Danko, in their hunt to track down those with abilities. Nathan uses his political pull with the President to put together a task force that will round up people with abilities, good or bad.

Samuel Sullivan (Robert Knepper) -- In Volume 5, "Redemption", we are introduced to Samuel Sullivan, from the Sullivan Brothers Carnival. Samuel has the ability to control earth, and the carnival exists as a "family" of other people with abilities. It is revealed in an old film reel Chandra Suresh recorded at Coyote Sands that Samuel is increasingly dangerous the more people with abilities he surrounds himself with. His brother Joseph knew this and worked hard to prevent this from happening. Samuel found out about his ability when Mohinder visited the carnival to talk to Joseph and later murdered his brother. Samuel is manipulating others at the carnival to accomplish his own purposes.

The licence plate number, NCC 1701, is the same as the registry number of the Starship USS Enterprise from the television series Star Trek (1966) in which George Takei appeared as the character Mr. Sulu.

The Haitian works for Angela, whose son is Nathan. He wanted him to get away.

A deleted scene from the blu-ray dvd and the episode "Let It Bleed" both show Samuel creating the ink from earth.

Volume 5 consists of 18 episodes (19 if you separate the first 2 hour episode under its two titles). The show was canceled by NBC before Volume 6 was filmed. A mini-series Heroes Reborn (2015) was aired as a spinoff instead.