Answer: Barry/Oliver
Oliver Queen woke up in Barry's bed, and was served breakfast by Iris West Allen, Barry's wife. In her eyes, he was still Barry, but the viewers saw Steven Amell, who played Oliver. This was the second scene of the episode after the villain received a book from a bad guy from the future.
This is the first part of a three-part, three series crossover episode. It started with "The Flash" Season 5, Episode 9, and carried into "Arrow" and "Supergirl". Characters from future spinoff shows "Batwoman" and "Superman & Lois" appeared as well.
From Quiz: "The Flash" 5.09 "Elseworlds"
Answer: The Thinker / Clifford DeVoe
Barry Allen works at CCPD, which stands for Central City Police Department.
From Quiz: 'The Flash' Quiz
Answer: Singing in the Rain
"Everything's better in song," he told his friends. He was upset over breaking off the engagement with Iris in a previous episode and watching the same movie he has seen with his mother as a child.
From Quiz: "The Flash" 3.17 "Duet"
Answer: Gypsy
Gypsy was the interdimensional cop that had come to track down Harrison Wells a few episodes earlier. Somehow she ended up in Grodd's universe under his control. He forced her to open the breach for him and his fellow gorillas.
From Quiz: "The Flash" 3.14 "Attack on Central City"
Answer: Africa
Gorilla City was the home to a race of sentient gorillas. Early in the episode Jesse Quick came through a portal from Earth-2 to tell the team that her dad (Harrison Wells of Earth-2) had gone to Gorilla City two weeks earlier.
From Quiz: "The Flash" 3.13 "Attack on Gorilla City"
Answer: Downtown Central City
The "meteor" was just outside of Star City. When Barry went to investigate it turned out to be a crashed spaceship. While investigating, the ship opened and several aliens rushed out of the ship.
From Quiz: "The Flash" 3.08 "Invasion"
Answer: Jefferson Jackson
Without another half to Firestorm, Professor Stein became ill and was on the verge of having a nuclear meltdown. Jefferson Jackson was one of two candidates chosen to be the new Firestorm. The first candidate, a scientist named Henry Hewitt, failed to merge with Professor Stein. However, Hewitt learned that he had developed powers and used them for evil. Jefferson eventually agreed to merge with Professor Stein and take down Hewitt.
From Quiz: "The Flash": Season 2
Answer: Arrow
This episode was titled "Flash Vs Arrow", and was a crossover between the two TV shows. In this episode, Arrow trained Flash to use his powers more wisely and to be more observant. After he was effected, Flash used the training against Arrow to fight him. The battle ended when Dr. Wells (Thawne) and Detective Joe West appeared with a machine that produced light. Once the correct color pattern was presented, Flash was back to normal. However, it would take some time for the city to regain his trust.
From Quiz: "The Flash": Season 1
Answer: 4 months
Zoom had been searching for Wells in the opening scenes of the episode. The episode opened on Earth-2, where Wells was from. Wells had been on Earth-1 for the past several months.
His Earth-1 counterpart had been killed in a season 1 episode of the series.
From Quiz: "The Flash"- 2.14 "Escape From Earth-2"
Answer: Supergirl
The show "Supergirl" was in its first season, while this was a season 2 episode of "The Flash".
Both characters were based on DC comics.
Melissa Benoist played Supergirl in the episode and on the series bearing her name.
Her appearance was a blink and you'll miss it event.
For Benoist it was an uncredited cameo appearance.
From Quiz: "The Flash"- 2.13 "Welcome to Earth-2"
Answer: A.M.A.Z.O.
The acronym stands for Anti-Metahuman Adaptive Zutonic Organism. It was an android build to fight against metahumans. IVO Labs is named after the comic character Anthony Ivo, who has appeared in the second season of "Arrow" played by Dylan Neal, this crossover episode was the first appearance on "The Flash" for the character, though he is only mentioned, along with the lab appearing in the episode.
From Quiz: "The Flash" 5.09 "Elseworlds"
Answer: Linda Park
In season three,Barry Allen and Kara Danvers sing the song 'Super Friends'.
From Quiz: 'The Flash' Quiz
Answer: Friend's Day
HR, which was one of the two versions of Harrison Wells featured in the episode, decorated the lab for Friend's Day. None of the rest of the team knew that that was. He explained that it was his Earth's version of Valentine's Day.
From Quiz: "The Flash" 3.14 "Attack on Central City"
Answer: Wally
Wally stayed behind with Jesse Quick in case there were any attacks on Central City. Julian insisted on going with the team as well, just for the chance to travel to another dimension. Barry and Julian used the excuse that they were going to a conference to cover for themselves at work.
From Quiz: "The Flash" 3.13 "Attack on Gorilla City"
Answer: The Dominators
This was at least the second time the Dominators had landed on Earth. Lyla Michaels told Barry and his team that they had came to Earth in the 1950s as well. Lyla is the director of Argus.
From Quiz: "The Flash" 3.08 "Invasion"
Answer: Vandal Savage
These episodes were a setup for the series "Legends of Tomorrow". Kendra Saunders, a barista at Jitters who went on a date with Cisco, learned that she was a 4,000 year old reincarnated Egyptian priestess. In each life, her destiny was to fall in love with Carter Hall and embrace that she was Hawkgirl. However, in each life they were killed by Vandal Savage, each death making Savage more powerful. Kendra and Carter defeated Savage with the help of Flash and Arrow, but would later learn in "Legends of Tomorrow" that the only way to truly kill Savage was for Kendra to kill him with something present at their first death in Egypt.
From Quiz: "The Flash": Season 2
Answer: Joe
The Dr. Wells that Barry knew was really Eobard Thawne from the future. Eobard Thawne went back in time and got stuck, so he killed the real Dr. Wells to impersonate him.
From Quiz: "The Flash": Season 1
Answer: Barry Allen
The Barry Allen they had locked up was from Earth-2. They had him locked away while the original Barry impersonated him in the previous episode. He was let go after one day when the other Barry was kidnapped.
From Quiz: "The Flash"- 2.14 "Escape From Earth-2"
Answer: Caitlin Snow
Caitlin Snow is a key member of The Flash's support staff. She is played by Danielle Panabaker in the series.
When several of the people from Earth-1 crossed over to Earth-2, they met up with an evil version of Caitlin instead of her regular cheery self.
Many of the doppelgangers were mirror images of the characters viewers were used to. Some of the characters didn't exist or were already dead in the other universe.
From Quiz: "The Flash"- 2.13 "Welcome to Earth-2"
Answer: Green Arrow
Since it was Oliver in the suit, he used his own catchphrase while trying to stop the diamond heist at IVO Labs. Cisco called him out on it not being his own line, but it didn't raise any red flags to people at that time.
From Quiz: "The Flash" 5.09 "Elseworlds"
Answer: Shay Lamden
Leonard Snart and his actor are both gay.
From Quiz: 'The Flash' Quiz
Answer: Both
When Barry arrived in the dream, Kara was already in it and performing a song on stage. He recognized her immediately, making viewers realize he had at least some if not all of his memories.
The actors who played Barry and Kara had starred on "Glee" before getting their roles as superheroes.
From Quiz: "The Flash" 3.17 "Duet"
Answer: Green Arrow
After getting the Green Arrow on board, he got help from the rest of Oliver's team, the entire cast of "Legends of Tomorrow" and Supergirl.
From Quiz: "The Flash" 3.08 "Invasion"
Answer: Tachyon Accelerator
Barry traveled back in time to find a way to become faster and stop Zoom. Barry knocked out his past self and pretended to be him, but Dr. Wells (Thawne) from the past quickly discovered that Barry was not who he said he was. Eventually, Dr. Wells gave Barry a futuristic flash drive with information on how to make a tachyon accelerator. When Barry returned to the present, he learned that he had changed something in the past. Hartley Rathaway (Pied Piper) was now good and was helping STAR Labs.
From Quiz: "The Flash": Season 2
Answer: Firestorm
After the particle accelerator explosion, both Ronnie and Stein were thought to be dead. Actually they went into hiding after being affected by the explosion. Firestorm had to power to produce nuclear blasts of fire. At first, Firestorm was just Professor Stein trapped in Ronnie's body. Eventually the two were able to separate and were than able to merge freely.
From Quiz: "The Flash": Season 1
Answer: In a time vault.
Cisko, Harrison and Earth-2 Barry hid in a time vault that only Harrison had known about prior to them entering.
Zoom actually found the vault, but the trio were behind a false wall inside the vault.
From Quiz: "The Flash"- 2.14 "Escape From Earth-2"
Answer: 2 days
Barry Allen, AKA The Flash, told Caitlyn to give him, Harrison and Cisko 48 hours to return. After that she was to assume that Zoom had captured them and to close the breach between the two different Earths.
From Quiz: "The Flash"- 2.13 "Welcome to Earth-2"
Answer: Ralph
After Ollie and Barry told Barry's team about them switching identities, no one believed them. Iris drugged Barry/Oliver, while Ralph punched Oliver/Barry in the face, knocking him out cold. They took both men back to Ray Palmer's lab until they could figure out what was wrong with them. They woke up in a cell, both handcuffed.
From Quiz: "The Flash" 5.09 "Elseworlds"
Answer: Music Meister
He was able to hypnotize them and place them into the shared dream state. HE appeared to them in the dream, and told them they had to get to the end of the plot before they would wake up in the real world. The caveat was that if they died in the dream, they would die in the real world as well.
From Quiz: "The Flash" 3.17 "Duet"
Answer: Gorilla
His name in the comic books is the one the nose Gorilla Grodd, when he debuted on the TV show he was simply named Grodd.
Grodd, voiced by David Sobolov, appeared in each of the first three seasons of the show.
From Quiz: "The Flash" 3.14 "Attack on Central City"
Answer: Telepathically
Grodd, or Gorilla Grodd as he was known in the comics, is a giant gorilla who has superior intelligence than most beings. He can communicate telepathically to both humans and animals. In a previous seaons Flash had banished him to Earth-2.
From Quiz: "The Flash" 3.13 "Attack on Gorilla City"
Answer: Mayor of Star City
On his own show, "Arrow", he spent the entire fifth season up to the point of this episode learning how to be a superhero and run the city. His sister, Thea AKA Speedy, was serving as his chief of staff.
From Quiz: "The Flash" 3.08 "Invasion"
Answer: Mark Hamill
Mark Hamill, who played Luke Skywalker in "Star Wars", reprised his role as The Trickster from the original "Flash" TV show in 1990. John Wesley Shipp, who originally played The Flash, also joined the new cast. In season one he was introduced as Barry's wrongly imprisoned father, Henry Allen.
From Quiz: "The Flash": Season 1
Answer: Killer Frost
Killer Frost, the evil doppelganger of Kaitlyn Snow, had survived a fight with Zoom in the last episode. During that fight Zoom had killed both Reverb and Firestorm.
Because of that fight, the team assumed that Killer Frost would be willing to help them defeat Zoom.
From Quiz: "The Flash"- 2.14 "Escape From Earth-2"
Answer: Iris West
Iris West was Barry's adoptive sister on Earth-1, and despite him pining over her, they never dated.
On Earth-2, Iris was a police detective married to Barry. This caused Earth-1 Barry some discomfort when pretending to be Earth-2 Barry.
From Quiz: "The Flash"- 2.13 "Welcome to Earth-2"
Answer: Barry Allen's Future Time Remnant
Barry Allen's daughter went back in time because she didn't grow up with Barry. The reason for this is because he vanished in crime.
From Quiz: 'The Flash' Quiz
Answer: Darren Criss
Criss was also a "Glee" alum who had a music background. He played the character who had only been done in comics and animated television prior to this live-action appearance. Neil Patrick Harris had previously done the voice on the animated version.
From Quiz: "The Flash" 3.17 "Duet"
Answer: Jesse Quick
Jesse Quick, played by Violett Beane, is Kid Flash's girlfriend. She appeared in a few season 2 episodes and made her season three debut in the first part of this 2-part episode.
She is a genius, and the daughter of Earth-2's Harrison Wells.
From Quiz: "The Flash" 3.14 "Attack on Central City"
Answer: Death by combat
Grodd tricked them into coming to the city to look for Harrison Wells so that they would be captured and forced to battle the leader of the gorillas in combat.
Grodd's plan was that either Flash would die, or he would kill the lead gorilla and Grodd could take over.
All fights in the arena were supposed to be to the death. Barry fought the giant white-haired gorilla for a few seconds before he realized that he couldn't go head to head. He was injured while trying to generate a lighting bolt to throw, but eventually knocked out the gorilla before showing him mercy and letting him live.
From Quiz: "The Flash" 3.13 "Attack on Gorilla City"
Answer: Earth-38
The Flash and Supergirl had crossed over the previous season when Barry accidently crossed the dimensional barrier. Knowing he needed help, he and Cisco sought her out to help fight the aliens. On "The Flash" they have explored many alternate universes, giving each a different number to identify it.
From Quiz: "The Flash" 3.08 "Invasion"
