And soon, there'll be "future little ones" as well.
- In general, Duchess' voice is so beautiful and motherly that it can cheer anyone up. It helps that her voice actress (Eva Gabor) would later voice Miss Bianca in The Rescuers and its sequel.
- Duchess and the kittens' friendship with Roquefort in general; how often do you legitimately see cats and a mouse being friendly with each other?
- Frou-Frou demonstrates her loyalty several times in the movie, and is treated in kind as a good friend by the others.
- She lets Berlioz ride on her back and head while she pulls the others in a carriage behind her, and tells him he's very welcome when he, prompted by his mother, thanks her.
- Madame Adelaide gives her a treat after the carriage ride, and her dialogue suggests that she always does.
- She glares at Edgar when he confesses to her that he disposed of Duchess and the kittens, silently letting him know that she considers the cats family, and no one messes with them and gets away with it.
- She acts as Roquefort's partner in the search for the cats, instructing him to ride on Edgar's motorcycle and warning him to be careful (though he ends up falling off).
- She is horrified when Edgar throws a pitchfork at O'Malley - thankfully it doesn't impale him, it just pins him to a wall.
- She finally serves as The Big Guy during the final fight with Edgar, delivers the final blow to Edgar and with it a one-way ticket to Timbuktu, and joins in on the Dance Party Ending.
- Marie's interaction with Duchess throughout the film. Sure, she may be a bit spoiled and a "tattletale" according to Berlioz, but she has a very close relationship with her mother, especially in the "Scales And Arpeggios" scene.
- O'Malley's selflessness. He clearly has the hots for Duchess (along with vice-versa) when they first meet, and when the kittens come out while they're flirting, he's understandably surprised, yet remains kind to them all. Many guys dating single moms beat it as soon as they find out about her children because they don't think of kids very highly or aren't ready to take on such a responsibility. And while O'Malley almost walks off, he quickly calls himself out and fulfills his promise to help them get home. He wins Duchess' heart and takes on the role of a surrogate father incredibly well to her kittens, who are very willing to have him as one. He's truly a street cat with a heart of gold.
- O'Malley initially plans to say goodbye to Duchess and her kittens when he ushers them onto a milk truck. But after helping Marie get back on, he doesn't hesitate to stay with them until they get back to Paris. Then later after Marie falls into a river, O'Malley—who has little if any swimming experience—doesn't even think twice before pouncing into the water to save her from drowning. He's only known them since that morning, and he's willing to give up his life for them (of course, he has a few to spare).
- Madame Adelaide is completely fine with taking in Thomas and even treating him like one of her own. She obviously has no idea what Duchess and the kittens had experienced when they were missing, or who this strange tomcat was, seeing Duchess and her kittens bonded with him is enough to convince Adelaide to accept him into her house. Even Thomas being an alley cat rather than a purebreed like Duchess doesn't matter to her. She even tells Georges that she's willing to welcome "future little ones" from Duchess and Thomas. By the end, she's started a new foundation allowing all the alley cats of Paris to have a home in her mansion. The 2022 graphic novel series The Aristokittens by Jennifer Castle shows that her home has fully become a safe haven for alley cats and kittens in Paris.
- The kittens immediately take to Thomas and are total Shippers On Deck for him and their mother. As noted above, lots of guys will bolt after learning a woman they have an interest in has kids; well the reverse is true where kids will have a problem the parents starting a new relationship with someone new. It helps that Toulouse is a red cat just like O'Malley whom the latter affectionately likes to call "tiger" for his "alley cat hiss" he makes. It's little wonder the geese sisters they meet initially mistake Thomas and Duchess for a married couple.
- The kittens squabble fiercely just like most siblings do, but there's a sweet moment near the beginning when Berlioz asks Duchess if he and Marie can watch Toulouse paint before starting their music lesson.
- On the other hand, he could've just been trying to delay his own music lesson...
- Thomas and Duchess sharing a moment together on the rooftop as they watch the moon. Moments later, their tails reflexively intertwined with each other's.
- Duchess' loyalty to Madame; she's just as worried about the old lady as she is about them. When Thomas asks her to stay with him, she doesn't even consider leaving her Madame as then she would be all alone. Duchess even insists that she and the kittens are her family and all she has.
- Madame cuddling with Marie and Duchess on the carriage ride at the beginning and laughing at Toulouse's antics with Edgar. She comes across like an affectionate grandmother.
- Madame's friendship with Georges Hautecourt, and them dancing together. They really do come across like a pair of the oldest and most affectionate friends.
- During the harp sequence of "Everybody Wants to Be a Cat", the alley cats outside of the house gather around to listen to the music. Some of them look like young couples.
- Doubles as a Tear Jerker: When Roquefort returns from trying to find the cats, he goes to talk to Frou-Frou in her stable, and their sorrowful exchange demonstrates the bond they have with each other and the rest of the household.Frou-Frou: Oh Roquefort, I've been so worried about you. Did you have any luck at all?Roquefort: Not a sign of them, Frou-Frou. And I've searched all night.Frou-Frou: I know. And poor Madam didn't sleep a wink either.Roquefort: Oh, it's a sad day for all of us.
- Minor, but after the rocky start to Roquefort meeting the alley cats, Scat Cat tries to apologize to the little guy for scaring him (read: threatening to eat him). Roquefort is clearly stressed and/or pissed, not wanting to have any of it, but he instantly pushes past the matter with "Don't worry about me! Duchess and her kittens are in trouble!".
- At the end, Roquefort is seen with a little conductor's wand when the alley cats are performing a reprise of "Everybody Wants To Be a Cat".
- Thomas O'Malley, the alley cats, Roquefort and Frou-Frou teaming up to rescue the cats. Special mention goes to the scene where Thomas and the alley cats start attacking Edgar while Roquefort is trying to rescue the cats from a locked chest.
- The ending where Thomas O'Malley becomes a father with Duchess and the kittens.
- When Madame thinks she hears her cats have returned home (she did, but Edgar had intercepted them), she immediately goes outside to greet them.
