Seneschal of Formenos: [almost speechless with fury] You — dishonorable ruffians — Captain: I beg your pardon? Beren wasn't doing anything to you — to say nothing of the rest of us. Seneschal of Formenos: Setting upon us with guile and greater numbers — ! Captain: I don't understand. Warden of Aglon: [snarling in pain] You outnumber us, idiot! Captain: [puzzled frown] Er — yes, surely you'd noticed that already? That's usually the way it is.
Advice and Trust: Rei is naturally blunt, but in chapter 8 she makes very obvious statements because her emotion-numbing medication is messing up her mind:
Rei: (staring at a watermelon) This melon... is very green. Green.
Oracle: Gladiator, I must warn you of my vision. I have a sight that she will try to escape before we make planet. Be on your guard. Gladiator: (rolling eyes) That I needed you to tell me? Thank you, Oracle.
Commander Lund: And how old is Miss Elsie? Ingrid: Eight, sir. Commander Lund: So you were playing with an eight year old girl? Ingrid: Not all the time, sir. Commander Lund: Of course not. Ingrid: She used to be seven, sir. And before that, six.
In The Bug Princess, Lydia finds herself lost in the Neitherworld. Fortunately, she soon finds a helpful sign that tells her where she is. "Welcome to the Middle of Nowhere. Population: You." Naturally, she offers her thanks to Captain Obvious for the information.
So I've got the trinkets. Brunhilda is still snoring away. Cujo, the killer schnauzer, is still locked in the bathroom. I close the safe, restore the power, slide the window back exactly the way it was—8 minutes flat. Personal best for a private residence where I didn't have the floorplan going in. I drop down to the alley—and there… he… is…The Batman. Caped Crusader. Dark Knight. Guardian of Gotham. Crime Fighter extraordinaire. I am Vengeance, I am Justice, I am in desperate need of a personality transplant… Batman. In full regalia—looking like Sir Lancelot dipped in tar but not yet feathered. And he speaks: "I don't think those jewels belong to you." ...I salute you, World's Greatest Detective!
The Child of Love: Ritsuko was hit hard with this in the first chapter when she and Misato are arguing possible consequences of Asuka being pregnant:
Ritsuko: Anyway, she...she can't think about it! And if an Angel attacks late in her term, she won't be able to pilot Unit 02! Misato: Oh, you found that out by yourself?
A Crown of Stars: In chapter 48 a thug pistol-whipped one of his drunk goons across the face with his gun. The goon's answer? "You hit me."
In Dave Stdider Pokemon Traner, Will Turner is probably the biggest offender, but Dave himself can get pretty bad too.
In Despair's Last Resort, the narrator does this after the first body is discovered hanging from the ceiling.
There was no way to deny it at that point. Chiyo was definitely dead. And someone among them was her murderer.
In Dirty Sympathy, Apollo reveals that his boss Kristoph is abusing him, but Apollo can't leave him due to being dependent on him. Klavier then summarizes what he's heard.
This exchange between Sergeant Kanril Eleya and Colonel Karryn Retta in From Bajor to the Black, regarding Eleya's career options.
Karryn: Door number three? An inter-service transfer order. Eleya:(Beat) Starfleet? Karryn: No, the Dominion. Of course, Starfleet.
In Gold Poisons, Jiang Cheng slips into this and notes that "I think he just admitted to it" when Jin Guangshan blurts out wanting Nie Mingjue dead near the end of his son's trial.
Geth:Possible Alliance allies have arrived. Harry: Yes. Thank you so very much for pointing out the obvious.
In the Psych fic Hero, there is the following exchange when a man who's taken a high school class hostage reveals he's got a bomb strapped to his chest:
Billy: Hey, that's a bomb! Shawn: Thank you, Captain Obvious.
Naru-Hina Chronicles: In one chapter, Sai suddenly makes his presence known to Yuko and a bunch of captives by knocking out from behind a guard who tries to attack them. However, Sai feels the need to tell them "Hello. I got him.", even though they could already tell that with their own eyes.
She-Hulk: Plus, well, my cousin went off the grid recently. Last I heard from Tony, he was in Nevada. And if someone stresses him out, well, we'll soon know it. The Hulk tends to draw attention. Tonks: And in other news, the ocean is wet.
In The Panda Chronicles chapter "Sick Day", after throwing up, Tae-young feels the need to tell Robaire that he threw up, despite Robaire standing right next to him, watching him do so.
Quicken: At the start of the story, when Emma goes berserker and starts head butting, gouging eyes and biting noses off, one of the thugs who attacked her exclaims:
"Holy shit, she's gone crazy!"
Tales of the Undiscovered Swords: Sasanoyuki has a tendency to state the obvious due to his lack of emotion. For example, his reaction when Izuminokami gives him a cabbage and asks him to chop it:
In Teenage Mutant Ninja Kneazles after Neville helpfully mentioned that the "cannot sing above the ground" part of the clue for the Second Task meant it would take place underwater and Harry and Hermione gave him scornful looks he commented "Fine, see if I point out the obvious next time."
Becomes a Ninja Prop when Admiral Awesome pretends to be dying in a fashion so similar to previous meaningless appearances of Captain Obvious that it can easily fool the readers too.
Enemy Boss Leader reveals that the way to kill Admiral Awesome is to shoot him in the head. Subverted when it turn out not to actually work though.
Buffy Summers, in jeans, T-shirt, and bare feet, holding the wet cloth to her forehead by one hand, raised her upper body off the couch. “Kara?” she said, her eyes widening in recognition. “It’s me, Buffy,” Kara said with a smile. In a second, the Slayer girl and the Girl of Steel were in each other’s arms, hugging. “Well,” said Willow, noting that Giles had just entered the room, “I guess they do know each other, after all.” “Remarkably observant, Willow,” noted Giles.
In Sic Transit Gloria Mundi Buffy, dealing with the threat of Glory and her mother's death, gets into an argument with Giles and storms out of the Magic Box.
In all honesty, he didn’t know what he was expecting, but it certainly wasn’t a red-colored shark head sitting atop a bundle of tentacles. It was hard to expect something like that.
In Looping Back to the Beginning, Dabi has a moment when the League of Villains shows up to attack the training camp, only to find a sign at the coordinates of the camp labeled "Caution: Landmines" with a stick-figure Shigaraki being blown up. This is after the League gets pizzas delivered to their hideout, in Shigaraki's name, with a message saying that they knew that the villains would attack the training camp.