* "Brain Drain", because Brainiac 5 minus proper functioning is way funnier than it's really supposed to be.
* Bouncing Boy screaming like a girl.
* How about when Lex Luthor's great-great-great-granddaughter sticks her tongue out at Superman ("Sundown, Part 2"), because he ''dumped'' her.
* In "Champions", Phantom Girl acting like a stereotypical hick to mock Superman when he pulls the {{Adorkable}} farmboy thing (after meeting her mother Winema Wazzo, the President of the United Planets) is much funnier than it should be; the look on her face sells it afterwards:
-->'''Phantom Girl''': (''acting like a {{Deep South}}er sarcastically'') "Aw shucks, ma'am. I ain't never met nobody! Uh-huh! Uh-huh!" (''grins at Superman smugly'')
* Lightning Lad's greatest fear? [[spoiler:A little doll!]]
** [[spoiler: Considering it's a [[MonsterClown clown]] [[CreepyDoll doll]] named ''[[TheExorcist Captain Howdy]]'', he may have had a very good reason to be afraid of that thing when he was little.]]
* In "Unnatural Alliances":
-->'''Imperiex''': "I believe you have have something I want."
-->'''Star Boy''': "What, Brainy's tuna salad recipe?"
** [[GalacticConqueror Imperiex's]] [[BloodKnight bed]][[NothingButSkulls time]] [[SerialProstheses story.]] Abel's cowering reaction says it all.
* In "Who Am I?", Chameleon Boy pretends to be [[spoiler:Persuader]].
-->'''[[spoiler:Chameleon Boy/Persuader]]:''' "OW! That hurt!"\\
'''Superman:''' "Sorry."
* In "Chained Lightning", Kell-El manages to [[MoodWhiplash break some dramatic tension]] by being TheComicallySerious:
-->'''Lightning Lad:''' "This energy cloud has brought us near the planet where my brother and I were infused with our powers ten years ago. ... It's also where we lost our sister, Ayla."\\
'''Kell-El:''' "[[MenDontCry ... You're not going to start crying, are you?]]"\\
'''Lightning Lad:''' (''continues talking as if he didn't hear him'')
** Also, when energy cloud!Ayla is begins singing the nursery rhyme:
-->'''Superman X:''' "THE CLOUD IS SINGING?!"\\
'''Bouncing Boy:''' "Creepy."
** Later, when Garth and Mekt join forces to restore Ayla, Bouncing Boy ribs on an unamused Superman. Kell-El's {{deadpan|Snarker}} delivery is what nails it.
-->'''Bouncing Boy''': "Aww, now that's not a tear I see from the tough guy, is it?"
-->'''Superman X:''' "Nope."
* In "Timber Wolf":
-->'''Bouncing Boy''': "Don't leave the hangar, huh? I can see why."
-->'''Brainiac 5''': "I assume we'll be snooping?"
-->'''Bouncing Boy''': "''Oh yeah.''"
* [[NotSoStoic Timber Wolf]] and Star Boy messing around during one of the Legion meetings in "In Your Dreams."
-->'''Brainiac 5''': "I'm sorry, am I ''boring'' you two?"
* When Lightning Lad jumps ship to the Light Speed Vanguard in "Lightning Storm", Superman and Timber Wolf decide to tail him and spy on the group, who aren't doing much of anything at the moment.
-->'''Superman''': "So what you do want to do while we're waiting? [[FishOutOfTemporalWater Play some checkers?]]"\\
'''Timber Wolf''': "What's checkers?"\\
'''Superman''': "It's a game we play in Kansas."\\
'''Timber Wolf''': "[[{{Beat}} ...]] What's Kansas?"
* The entirety of "The Substitutes", where the [[ButtMonkey rejected Legion]] [[HopelessAuditionees applicants]] (the Legion of the Substitute Heroes: Porcupine Pete, Infectious Lass, Chlorophyll Kid, Stone Boy, and Color Kid) get ADayInTheLimelight and deal with the [[LaughablyEvil whimsical]], "third-rate nuisance" Starfinger [[spoiler:whose furry minions unknowingly are the ionosphere-eating monsters the Legion has to deal with]]. In short, "HilarityEnsues: The Episode."
* Kell-El's increasingly terrible pronunciation of a simple counter-spell ("Magica Absistas") in "Trials."
-->'''Zyx''': "Wow, that is shockingly bad."
* Bouncing Boy's reaction to [[spoiler: winning the legion election]]
-->'''Bouncing Boy''': I demand a recount!
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