In Episode 2, while they are keeping a lookout for civilians while evacuating, Calm and Okojo discuss the war and the state of the UE Army, which ends with Okojo dropping a Precision F-Strike against the Martians. The funny part is that his Japanese voice actor actually says the word "Fuck" in English.
Inaho's general lack of reaction to things happening around him can get pretty amusing, such as the time he was calmly making an omelette while an evacuation order was in effect for the entire city and his sister had to call and tell him to get a move on. His response?
While helping to pilot the hovercraft, in Episode 4, Nina almost crashes it into a large piece of debris, leading to this panicked run through her options and sounding like a hyperactive chipmunk:
"Right? Right? Left? Right? Right? Left?"
Eddelrittuo passes herself off as Asseylum's younger sister and cooks up a story about how she's always been too sick to pass Kataphrakt training courses to excuse her out of the UE's draft. However she almost blows her cover by constantly referring to Asseylum as "Princess" in front of the recruiter. She bluffs her way out of it by pretending to have a sister complex.
The hilarious nicknames Slaine and Inaho have given to each other: "Bat" and "Orange", respectively.
When Inaho and Slaine run into each other again, Inaho recognises Slaine.... then says he's had a class change to Gull, since Slaine's now piloting the Tharsis.
Calm, who had vowed to get revenge against all Martians for his friend Okojo's death, suddenly forgets said vow when he meets a pretty Martian girl and abruptly declares that Martians are like everyone else with good and bad apples... right after he reaffirmed that he was going to destroy all Martians. Inko & Nina are not amused.
Asseylum wears a school uniform and explains she got it from Nina, who suggested it might be difficult to move around the ship in her dress. Then we discover Nina has taken the opportunity to try on the Pimped-Out Dress
Inaho manages to disarm Rayet when she attempts to commit suicide. When she asks him what the hell he's doing, Inaho misses the point and calmly explains that grabbing the slide of an automatic pistol will stop it from firing, which was the most efficient way of disarming her.
Mustang 33: "If you're that scared, you're more likely to be hit. Bullets are attracted to cowardice! Stay strong, and everything will fly right past-" BOOM
In Episode 14, Inaho demonstrates what his bionic eye can do, by making fun out of Inko's calculated weight. Her reactions to deny the facts is worth watching.
Especially funny in follow-up is after the completely flustered Inko storms out, revealing Rayet in the corridor. Inaho states that he had assumed that his cybereye would help him in socialization with Inko. Rayet dryly calls him an idiot for thinking so.
The bit that truly sells the scene, however, is Inaho's final response: cover his good eye, assess Rayet's biometrics, and then... "You're not lying." Yes, Inaho - you're an idiot.
As a reference back to the above from episode 14, episode 17 has Inko, Nina, and even Kaoru shocked to find out Rayet doesn't diet, yet maintains a slim figure. They ask her how she does it, but Rayet leaves after hearing that Inaho was interrogating Mazuurek, a Martian knight they captured in the previous episode. Kaoru living up to her Hollywood Dateless life, laments that she never told them her secret.
Episode 19 has a couple:
First we have Calm and the girl trio eating in the cafeteria gossiping about how Magbaredge's aid Mizusaki must be devastated that she took Marito to the conference as her escort instead of her.
Next, we have this exchange between Inaho and Yuki:
Inaho: Slaine Troyard.
Yuki: The douchebag who shot my cute little brother?
Inaho: Thanks. But watch your language Yuki-nee.
Made doubly hilarious because Nao upbraids his sister as a superior officer.note As of second season's end Inaho is an Ensign gunning for a Lieutenant JG, while Yuki is still a Warrant Officer.
In episode 21, Inaho and co. are having trouble against the Ortygia. During the battle, Inaho says that his early assumption that "there was only one real one" was wrong, and goes on to explain his recent findings in the usual Techno Babble. Rayet questions what exactly that means, and then Inaho rephrases it using other Techno Babble, leading Inko to literally scream at him asking "Again, what does that mean!?"
Mainly for anyone who ever said Inaho acted like a robot.
The fact that of all the possible crazy technology Aldnoah can do, Barouhcruz's Kataphrakt uses what are essentially glorified yo-yos in battle. It doesn't help that he calls them "electromagnetic bobbins." Of course, what he does with those yo-yos is a whole lot less funny.
Erika Harlacher has a tweet that Inaho [Max Mittelman] found some eggs. Read it here.