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Cosplay Day is the one hundred and forty-fifth episode of Ben 10.

Synopsis

Team Tennyson enjoy the biggest convention in town, but when a gawky costume store employee finds a familiar-looking helmet in the back of the store and tries it on, Ben is faced with the return of an old foe in a new form: Forever Knight!

Plot

The episode opens up with Steve and Bill announcing the cos con competition. Judges judge different costumes of the contestants. One of those contestants being Ben. However Ben didn't win. He exits the stage complaining. He questions why he gets booted off, while people wearing Forever Knight helmets get to stay. Gwen replies saying that every since Kevin's video went viral, Forever Knight caught a lot of attention. Max tries to reason with Ben, but Ben takes his words in the wrong. Ben transforms into Humungousaur and runs off. Max states that Ben doesn't need him to learn this lesson. He then walks off.

Max talks to a lady at a stand filled with mask. He questions the names of different masks. The lady then reaches to show him a "special mask", however it's missing. Max walks off, but then a kid wearing a Forever Knight helmet bumps into him, dropping his badge. Max catches up to the kid, but the kid dashes through, pushing Max out of the way. Max figures that the kid isn't the type of guy to knock a grandpa over.

Max walks into an exit, where the security guards followed the child. He then finds knocked out guards on the floor, one of them being controlled by Forever Knight's helmet. Max recognizes the Forever Knight. The Knight questions how Max found him, and Max admits that he just bumped into to him. Forever Knight recommends that he just walks away. Max allows him to pass by, Forever Knight walks by, but is tackled by Max. Gwen walks into the room looking for Max, only to find him wrestling a buff security guard. Gwen questions what's going on. A kid walks up, and Forever Knight suggest that speed would be more useful. He then takes over the kid. Max alerts Gwen that the helmet is Forever Knight, and he's looking for a new host for his consciousness. Max demands Gwen to find Ben while he keeps tracking Forever Knight. Max runs off and finds the kid, however Forever Knight's helmet is gone. The helmet then crawls by.

Forever Knight taking over Max's body.

Back at the contest, the judges speculate Ben's new costume as Four Arms. They aren't impressed. Gwen alerts Ben that they have a problem. Gwen tells Max that she found Ben. Max tells him that he lost sight of Forever Knight. Ben questions who, and Max tells him that it's Forever Knight, and his helmet takes control over whoever is wearing it. Ben doesn't believe it. The helmet looks over to the Bill and Steve. Ben decides to go win the costume contest, instead of helping with the Forever Knight situation. Ben transforms into Omni-Kix Cannonbolt. Steve is then taken over by the helmet. He clears out the building, using the microphone. Cannonbolt complains, and then notices that it really was Forever Knight. As Forever Knight walks out, he runs into Cannonbolt. He attempts to escape, but Cannonbolt chases him down. They eventually make it to the top of the roof. Forever Knight is tired because of his new body. Cannonbolt Eventually, Max arrives, and Forever Knight jumps behind him, taking over his body. Forever Knight attempts to make an offer. He offers to let Max go, unharmed, in exchange for a clean exit. After almost throwing Max off of a cliff, Cannonbolt accepts. Before Forever Knight begins to leave, Gwen jumps on top of Max's head, taking the helmet off. Max then catches it inside of a bowl that was apart of Ben's costume. Max then calls Phil to see if he knows what to do. Luckily, Phil was there already. Phil states that he should interview everyone that the helmet latched on to, starting with the announcer, Steve. Steve sees the helmet and awards Phil a best-in-show ribbon for his costume. Ben then gets mad.

Noteworthy Events

Major Events

  • It is revealed that the Forever Knight is a technology construct with a consciousness that lives inside the helmet.
  • Phil takes Forever Knight to study him.

Minor Events

  • Max and Gwen are now taking the threat posed by Forever Knight seriously.

Characters

Neutral

Villains

Aliens Used

Quotes

Quotes.png


Max: Forever Knight is looing for a new host for his consciousness. You get Ben. I'll try to keep tracking him.
Gwen: Right!


Quotes Right.png


Quotes.png


Max: Let me go!
Forever Knight: You started this, now you're going to end it.
Omni-Kix Cannonbolt: No!
Forever Knight as Max: Maybe this will help you understand throwing someone's body into a time void has consequences.
Steve: Hey. Wha-- What just happened?
Forever Knight: Don't worry about it.
Steve: Okay, nighty-night. Ugh.
Omni-Kix Cannonbolt: What are you doing with my grandpa?!
Forever Knight: I have a proposition for you, Tennyson. Obviously, I don't want your geriatric grandfather to be my host anymore than you do, but you have to understand, you've left me in a very difficult position. Grant me the dignity of a clean exit, and I'll return you're grandfather safe and sound.
Omni-Kix Cannonbolt: What if I don't feel like making deals with robo-creeps?
Forever Knight: I'm a very resilient construct. Unfortunately, I can't exactly say the same for my human hosts.
Omni-Kix Cannonbolt: You're buffing!
Forever Knight: If you're going to be like that, there's really no point in having this conversation. Goodbye.
Max: Ben! W-What's going on? I--
Omni-Kix Cannonbolt: You did it! You win.
Forever Knight: Excellent choice. I would like to say it's been pleasure doing business, but you're a horrible little monster, and I loathe you.
Omni-Kix Cannonbolt: Ah, quit gloating! The sooner you get lost, the sooner I get my grandpa back!
Forever Knight: Absolutely. Oh, and, uh, Tennyson...this should go without sayin--
Gwen: Someone forgot to count their Tennysons!


Quotes Right.png


Cast

Voice Actor Role(s)
Tara Strong Ben Tennyson
Montserrat Hernandez Gwen Tennyson
David Kaye Max Tennyson, Humungousaur, Steve
Travis Willingham Cannonbolt, Omni-Kix Cannonbolt
Roger Craig Smith Forever Knight, Bill
John DiMaggio Four Arms, Phil Billings


Naming and Translations

Language Name Origin
Spanish (HA) Día de Cosplay Cosplay Day

Allusions

  • There is a background character who bears an appearance similar to Rook Blonko with a helmet.

Trivia

  • The scene where Forever Knight takes control over Max was heavily cut down due to it being hard to animate, and too scary for kids.[KT 1]
  • It was stressful for Forever Knight to try to jump around between the congoers and make them perfomr the physical feats he was used to in the previous season. This is probably because he has a strict vetting process for bodies and only wants those in peak physical condition.[KT 2]
  • Grandpa Max wears the same costume he had in the episode Welcome to Zombozo-Zone!.

References

Kelly Turnbull

Ben 10 Episodes

Season 1 WaterfilterThe Ring LeaderThe FilthFreaky Gwen BenTake 10Animo FarmClown CollegeSomething I AteRustbucket RIPBen 24hrsRiding the Storm OutThe ClocktopusGrowing PainsShhh!Brief Career of Lucky GirlAdventures in BabysittingSteam is the WordNeed for SpeedCutting CornersDon't Let the Bass DropVillain TimeBright Lights, Black HeartsRecipe for DisasterAll WetStory, BoredXingoDrive You CrazyHole in 10The Beast InsideTomorrow TodayForgetiScared SillyBad PennyMax to the MaxZombozo-LandDon't Laze Me, BroOmni-Tricked: Part 1Omni-Tricked: Part 2Omni-Tricked: Part 3Omni-Tricked: Part 4
Season 2 Out to LaunchCan I Keep It?Battle at Biggie BoxBon VoyageMayhem in MascotScreamcatcherVote ZombozoAnimorphosisThe 11th Alien: Part 1The 11th Alien: Part 2High Stress ExpressCreature FeatureDrone OnSafari Sa'BadThe Nature of ThingsAssault on Pancake PalaceBomzobo LivesThe Sound and the FurryKing KoilReststop RoustaboutThat's The StuffHalf-SiesXingo's BackBounty BallFear The FoggThe Charm OffensiveSuper-Villain Team-UpThe FeelsChicken Nuggets of WisdomPast Aliens PresentDouble HexYe Olde Laser DuelAll Koiled UpBen Again and AgainDreamtimeInnervasion Part 1: Message in a BoxcarInnervasion Part 2: Call the Dream PoliceInnervasion Part 3: Strange BedfellowsInnervasion Part 4: Mind Over Alien MatterInnervasion Part 5: High Override
Season 3 Omni-CoppedThis One Goes to 11Moor FoggRath of ConKing of the CastleSpeechless on the SeinePoles ApartShow Don't TellDon't TouchBig in JapanWelcome to Zombozo-Zone!Bridge OutCyber SlammersBig Ben 10Beach HeadsLaGrange MurailleCharm School's OutBilly BajillionsFranken-FightBuggin' the BuggsWhich WatchBaby BuktuThem's Fightin' Words!Lickety SplitMutiny for the BountyThe Chupaca-broBuggy OutIntroducing Kevin 11Four by FourCirque-UsForever RoadThe BentathlonBeware the Scare-CrowAnd Xingo Was His Name-OThe Night Ben Tennyson Came to TownThe Claws of the CatPrey or PlayFear in the FamilyRoundabout: Part 1Roundabout: Part 2
Season 3 Extra Xingo NationHeads of the FamilyMy BodyguardWheels of FortuneHeat of the MomentVin DiagramA Sticky SituationWhat Rhymes with Omnitrix?You Remind Me of SomeoneAdrenaland Jr.Steam Fight at the OK CorralI Don't Like You
Season 4 Summer BreakersGentle BenFunhouseThe Monsters in Your HeadTokyo Fun, Part 1: Big Bugg BashTokyo Fun, Part 2: Slamming It UpQueen of BeesFalls, Falls, FallsThe Greatest LakeMud on the RunChicken In Chichen Itza, Part 1: Pyramid SchemeChicken In Chichen Itza, Part 2: The Wages of FearIt's Story TimeCosplay DayTales from the OmnitrixBottomless BenBen in Rome, Part 1: A Slice of LifeBen in Rome, Part 2: The Bee's KneesParty PoopersWind Some, Lose SomeDigital QualityTim Buk-tvGrowing Up Is Hard to DoThe Hex FactorSweet ToothMedieval UpheavalSpeed of SoundXingo’s WorldTummy AchePlayers of the Lost ParkDe-FangedMock 10RekoilBuktu The Future
Season 4 Movie Ben 10 Versus the Universe: The Movie
Season 5 Specials Ben 10,010Ben Gen 10Alien X-Tinction
Specials Crossover Nexus

Season 1 The FilthWaterfilterThe Ring LeaderRiding the Storm OutThe ClocktopusTake 10Growing PainsShhh!Brief Career of Lucky GirlAnimo FarmClown CollegeAdventures in BabysittingSomething I AteSteam is the WordThe Beast InsideAll WetVillain TimeDrive You CrazyTomorrow TodayStory, BoredHole in 10Recipe for DisasterRustbucket RIPFreaky Gwen BenBen 24hrsBright Lights, Black HeartsDon't Laze Me, BroDon't Let the Bass DropBad PennyZombozo-LandForgetiMax to the MaxCutting CornersNeed for SpeedXingoScared SillyOmni-Tricked: Part 1Omni-Tricked: Part 2Omni-Tricked: Part 3Omni-Tricked: Part 4
Season 2 Out to LaunchBattle at Biggie BoxBon VoyageMayhem in MascotScreamcatcherCreature FeatureBomzobo LivesAnimorphosisAssault on Pancake PalaceHigh Stress ExpressThe 11th Alien: Part 1The 11th Alien: Part 2Half-SiesXingo's BackBounty BallFear The FoggSuper-Villain Team-UpCan I Keep It?Chicken Nuggets of WisdomAll Koiled UpKing KoilThe Charm OffensiveDouble HexYe Olde Laser DuelBen Again and AgainVote ZombozoDrone OnSafari Sa'BadThe Nature of ThingsThe Sound and the FurryReststop RoustaboutThat's The StuffThe FeelsPast Aliens PresentDreamtimeInnervasion Part 1: Message in a BoxcarInnervasion Part 2: Call the Dream PoliceInnervasion Part 3: Strange BedfellowsInnervasion Part 4: Mind Over Alien MatterInnervasion Part 5: High Override
Season 3 Omni-CoppedThis One Goes to 11Rath of ConPoles ApartShow Don't TellWelcome to Zombozo-Zone!Bridge OutBeach HeadsCharm School's OutBilly BajillionsFranken-FightBuggin' the BuggsWhich WatchBaby BuktuThem's Fightin' Words!Mutiny for the BountyThe Chupaca-broBuggy OutIntroducing Kevin 11Four by FourMoor FoggKing of the CastleSpeechless on the SeineDon't TouchBig in JapanCyber SlammersBig Ben 10LaGrange MurailleLickety SplitThe Claws of the CatRoundabout: Part 1Roundabout: Part 2Cirque-UsForever RoadThe BentathlonPrey or PlayBeware the Scare-CrowThe Night Ben Tennyson Came to TownAnd Xingo Was His Name-OFear in the Family
Season 3 Extra Xingo NationHeads of the FamilyMy BodyguardWheels of FortuneHeat of the MomentVin DiagramA Sticky SituationWhat Rhymes with Omnitrix?You Remind Me of SomeoneAdrenaland Jr.Steam Fight at the OK CorralI Don't Like You
Season 4 Chicken In Chichen Itza, Part 1: Pyramid SchemeChicken In Chichen Itza, Part 2: The Wages of FearBen in Rome, Part 1: A Slice of LifeBen in Rome, Part 2: The Bee's KneesGentle BenFunhouseSummer BreakersThe Monsters in Your HeadQueen of BeesFalls, Falls, FallsThe Greatest LakeMud on the RunIt's Story TimeCosplay DayBottomless BenTales from the OmnitrixParty PoopersWind Some, Lose SomeDigital QualityTim Buk-tvTokyo Fun, Part 1: Big Bugg BashTokyo Fun, Part 2: Slamming It UpGrowing Up Is Hard to DoThe Hex FactorSweet ToothMedieval UpheavalSpeed of SoundXingo’s WorldTummy AchePlayers of the Lost ParkDe-FangedMock 10RekoilBuktu The Future
Season 4 Movie Ben 10 Versus the Universe: The Movie
Season 5 Specials Ben 10,010Ben Gen 10Alien X-Tinction
Specials Crossover Nexus