New Threats and New Worlds

New Threats and New Worlds is a fanfiction based on Season 2 of the CW show, The Flash, written by Mina A. It takes place concurrently with Darkness Among Star City.

By the finale of New Threats and New Worlds and Darkness Among Star City, all five Guardians are awakened and bonded to their respective gems, thus concluding the "Search for the Guardians" saga of the Guardian Arrowverse.

Summary
Six months have passed since the singularity and just as things were getting back to normal for Team Flash...everything changes. Suddenly there are new enemies and allies from another Earth, and another evil speedster hellbent on destroying The Flash. Can Team Flash survive these new threats? Or will Zoom be the end of them?

Plot Synopsis
Six months after the singularity opened above Central City and the death of Eddie Thawne and the Reverse-Flash, the members of Team Flash slowly get back to their normal daily lives. Elizabeth works a temp job as a waitress while trying to support her children, Lorelai and Joe work with Cisco on the Meta-Human Task Force, Claire continues her job at the coroner's office and the urgent care clinic while also working to control her newfound powers, Caitlin took a job at Mercury Labs and continues to mourn the death of her husband Ronnie, Theo now works as an Assistant District Attorney, Iris continues to work at CCPN, and Barry continues his CSI job while working solo as The Flash, having pushed all his teammates away. Central City decides to honor Team Flash for saving the city and hold "Hero Day", in their honor.

Main Cast

 * Holland Roden as Elizabeth Mendel/Mother Nature: Revealed as the Drakonian Princess last season, Elizabeth is still reeling from being betrayed by Wells/Thawne. After the singularity, she focused all her time on her twins and her job, but when the new metas from Earth-2 arrive, Elizabeth suits up once again as Mother Nature. Over the course of the season, Elizabeth gets close with Jay Garrick.
 * Holland Roden as Libby: Libby is Elizabeth's Earth-2 doppelganger and is a Lieutenant in Zoom's Meta-Human Army, as well as his right-hand woman and lover. She's a Drakonian with black scales and has the powers to control wind and shadows, has a sonic scream and poison in her claws. She's confident and ruthless.
 * Troian Bellisario as Det. Lorelai Snart/Ice Princess: Since the singularity, Lorelai now works with the Meta-Human Task Force alongside Joe, while still continuing her duties as the heroine Ice Princess. After the return and subsequent death of her father, Lorelai finally allows herself to admit her feelings for Cisco, move forward into a romantic relationship with him.
 * Troian Bellisario as Rory Ramon/Lady Flame: Lorelai's Earth-2 doppelganger who's a Lieutenant in Zoom's Meta-Human Army and the wife of Francisco Ramon/Reverb. Rory has pyrokinetic powers and dresses in tight black leather with stiletto heeled boots. She's hot-headed and always ready for a fight, and takes pleasure in killing. Though she is loyal to Zoom's cause, her true loyalty is to her husband, and she silently vowed her revenge upon his death.
 * Grant Gustin as Barry Allen/The Flash: Since the singularity, Barry had distanced himself from the rest of Team Flash. However, once the new metas from Earth-2 arrive, he works with his team to combat them. Over the course of the season, Barry comes to terms with his feelings for Claire, but when tragedy strikes, Barry will take time into his own hands.
 * Grant Gustin as Dr. Barry Allen: Barry's Earth-2 doppelganger who's head of the CSI Unit of CCPD and the husband of lounge singer Clarice Allen. Unlike his Earth-1 counterpart, he is not a meta-human.
 * Dianna Agron as Dr. Claire Daniels/Carbuncle: The Central City Medical Examiner and newest heroine of Team Flash. In the six months since the singularity, Claire has worked to master her Telepathic and Psychokinetic abilities, as well as her Guardian abilities, and calls herself Carbuncle. Over the course of the season, Claire's feelings for Barry grow more prominent and once it looks like they're about to move forward, tragedy strikes and everything changes.
 * Dianna Agron as Clarice Allen: Claire's Earth-2 doppelganger who works as a lounge singer at Jitterbugs, the husband of Dr. Barry Allen, the sister of Dr. Theodore Daniels and best friend of Detective Iris West-Daniels. Unlike her Earth-1 counterpart, she is not a meta-human.
 * Carlos Valdes as Cisco Ramon/Vibe: The mechanical engineering genius and tech-guru of Team Flash, who is also working with the CCPD's Meta-Human Task Force by building various technical gadgets. Cisco's romantic feelings for Lorelai come to the forefront when her father returns to town, and after his death, they enter into a relationship. Throughout the season, Cisco struggles with his new status as a meta-human and mastering his abilities.
 * Carlos Valdes as Francisco Ramon/Reverb: Cisco's Earth-2 doppelganger who's a Lieutenant in Zoom's Meta-Human Army and the husband of Rory Ramon/Lady Flame. Like his Earth-1 counterpart, he has powers over the dimensional energies. He's a ruthless, criminal mastermind, and slightly sociopathic. However, he does have a soft spot for his wife, Rory, and is not afraid to show it.
 * Danielle Panabaker as Dr. Caitlin Snow: After the singularity and death of her husband, Caitlin took a job at Mercury Labs. However, once the new metas from Earth-2 arrive, she rejoins Team Flash. It's shown she has a slight romantic interest in Jay, but nothing comes of it since he's interested in Elizabeth. Caitlin acts as the team's medical professional alongside Claire, and is also the personal physician for Josh and Jasmine.
 * Danielle Panabaker as Caitlin Snow/Killer Frost: Caitlin's Earth-2 doppelganger who's the enforcer in Zoom's Meta-Human army, and the wife of Ronnie Raymond/Deathstorm. She's a sadistic and immoral criminal with cryokinetic powers, who dresses provocatively. At first she was loyal to Zoom, but after he killed her husband, she turned against him which resulted in her death.
 * Candice Patton as Iris West: The daughter of Joe and best friend of Barry and Claire, and a reporter at Central City Picture News. Still mourning the death of her fiance, Eddie, Iris helps Team Flash to the best of her ability. After getting closure with what happened to Eddie, Iris begins a romantic relationship with Theo.
 * Candice Patton as Det. Iris West-Daniels: Iris' Earth-2 doppelganger who's a detective with the Central City Police Department and wife of Dr. Theodore Daniels. She's also best friends with Clarice Allen and Dr. Barry Allen.
 * Paul Wesley as Theo Daniels: Former lawyer for S.T.A.R Labs and Harrison Wells, who now works as the Assistant District Attorney for Central City. He still helps Team Flash and monitors them while they're in the field and continues to help watch Elizabeth's twins whenever Team Flash is aiding their allies in Star City.
 * Paul Wesley as Dr. Theodore Daniels: Theo's Earth-2 doppelganger who's a theoretical physicist, the older brother of Clarice Allen, and the husband of detective Iris West-Daniels.
 * Jesse L. Martin as Det. Joe West: Iris' father and Barry's foster father, surrogate father of Claire and Lorelai as well as the latter's partner at CCPD. He now leads the Meta-Human Task Force and continues to help Team Flash whenever possible.
 * Jesse L. Martin as Joseph West: Joe's Earth-2 doppelganger who's a lounge singer at Jitterbugs with Clarice Allen, who is killed by Lady Flame and Deathstorm.
 * Tom Cavanagh as Harrison "Harry" Wells: The Earth-2 doppelganger of Harrison Wells, who comes to Earth-1 to help Team Flash and stop Zoom in order save his daughter, Jesse. Although cold and distant at first, Harry gradually warms up to the members of Team Flash. He commonly refers to members by their last names or job titles, except for Elizabeth, whom he shows affection for.

Recurring Cast

 * Teddy Sears as Jay Garrick/Hunter Zolomon/Zoom: At first an ally from Earth-2 who wants to help Team Flash stop Zoom, but is later revealed to be Zoom. He shows a romantic interest in Elizabeth because of her resemblance to Libby and wants to use her Drakonian powers for his own goals of conquest.
 * Tony Todd as the voice of Zoom.
 * John Wesley Shipp as Dr. Henry Allen: Barry's father who was released from prison following Thawne's confession to Nora Allen's murder. He shows up from time to time to support Barry and the rest of Team Flash.
 * John Wesley Shipp as Dr. Jay Garrick/The Flash: The Earth-3 doppelganger of Henry Allen and the superhero The Flash.
 * Ciara Renee as Kendra Saunders/Hawkgirl: A barista at CC Jitters who begins a short relationship with Theo. She later finds out she's a reincarnated Egyptian priestess and the soulmate of Carter Hall/Hawkman.
 * Patrick Sabongui as Captain David Singh: CCPD Captain and boss of Joe West, Lorelai Snart, and Patty Spivot.
 * Patrick Sabongui as Singh: The Earth-2 doppelganger of Captain Singh who's a criminal.
 * Robbie Amell as Ronnie Raymond/Firestorm: The late husband of Dr. Caitlin Snow and former half of the meta-human Firestorm.
 * Robbie Amell as Ronnie Raymond/Deathstorm: The husband of Caitlin Snow/Killer Frost who is killed by Zoom for disobeying orders.
 * Victor Garber as Professor Martin Stein/Firestorm: A grandfather figure to some of Team Flash as well as honorary member, and one half of the meta-human Firestorm.
 * Franz Drameh as Jefferson "Jax" Jackson/Firestorm: A former high-school football star who now works as an auto mechanic, and later becomes the new partner for Martin Stein and the F.I.R.E.S.T.O.R.M Matrix.
 * Shantel VanSanten as Detective Patty Spivot: A rookie detective who works on the Meta-Human Task Force with Joe and Lorelai, and becomes a short-term girlfriend of Barry Allen.
 * Vanessa Williams as Francine West: Joe's estranged wife and mother of Iris and Wally, who is dying of cancer.
 * Keiynan Lonsdale as Wally West: Joe's son and Iris' younger brother.
 * Malese Jow as Linda Park: A sports reporter at CCPN and friend of Iris West.
 * Malese Jow as Linda Park/Dr. Light: Linda's villainous Earth-2 doppelganger who comes to Earth-1 to kill The Flash by order of Zoom.
 * Demore Barnes as Dr. Henry Hewitt/Tokmak: A strong candidate to bond with Martin Stein and become Firestorm, but the attempt was unsuccessful, which in turn activated his latent meta-human ability to absorb and generate fire-like energy.
 * Demore Barnes as Dr. Henry Hewitt: The Earth-2 doppelganger of Henry Hewitt who works as a lab assistant at S.T.A.R Labs.
 * Rick Cosnett as Detective Eddie Thawne: The late partner of Joe and Lorelai and late fiancee of Iris West.
 * Violett Beane as Jesse Wells: The daughter of Earth-2 Harrison Wells.
 * Matt Letscher as Professor Eobard Thawne/Reverse-Flash: An enemy of Team Flash who arrives from the future to try and kill The Flash.
 * Amanda Pays as Dr. Tina McGee: Head of Mercury Labs and a friend of Team Flash.

Special Guest Stars:

 * Stephen Amell as Oliver Queen/Green Arrow: The leader of Team Arrow in Star City and the partner of Andrea Rayne/Arctic Fox, both professional and personal. He appears in the crossover event "Legends of Today".
 * Nina Dobrev as Andrea Rayne/Arctic Fox: Formerly known as Artemis, she's a vigilante member of Team Arrow, a Guardian, and the partner of Oliver Queen/Green Arrow, both professional and personal. She appears in the crossover event "Legends of Today"
 * Vanessa Morgan as Selena Merlyn/Lunar Wolf: Leader of the Guardians and a member of Team Arrow in Star City. She's the partner of Elena Queen/Nightingale and the girlfriend of Rachel Rayne. She appears in the crossover event "Legends of Today".
 * Dove Cameron as Rachel Rayne: The tech expert and hacker for Team Arrow, Andrea's younger sister and Selena's girlfriend. She appears in the crossover event "Legends of Today".
 * Cassie Scerbo as Elena Queen/Nightingale: A Guardian and member of Team Arrow in Star City. She's the partner of Selena Merlyn/Lunar Wolf, the younger sister of Oliver and older sister of Thea. She's also the girlfriend of Detective Carter Hall/Hawkman. Elena appears in the crossover event "Legends of Today" and the episode "King Shark".
 * Willa Holland as Thea Queen/Speedy: A member of Team Arrow in Star City, the girlfriend and partner of Tim Drake/Robin, the youngest sister of Oliver and Elena, and the biological daughter of Malcolm Merlyn. She appears in the crossover event "Legends of Today".
 * Dylan O'Brien as Tim Drake/Robin: A member of Team Arrow in Star City, and the boyfriend and partner of Thea Queen/Speedy. He appears in the crossover event "Legends of Today".
 * David Ramsey as John Diggle/Spartan: A member of Team Arrow in Star City and best friend of Oliver Queen/Green Arrow. He appears in the crossover event "Legends of Today" and the episode "King Shark".
 * John Barrowman as Malcolm Merlyn: The new leader of the League of Assassins, the biological father of Thea Queen/Speedy and adoptive father of Selena Merlyn/Lunar Wolf.
 * Falk Hentschel as Det. Carter Hall/Hawkman: A Star City PD Detective and boyfriend of Elena Queen/Nightingale who is also a reincarnated Egyptian prince and the soulmate of Kendra Saunders/Hawkgirl.

Misc. Trivia

 * This season introduces the concept of the multiverse which would become a key part in future seasons.