Height: Eye level with Astro's shoulder. Gender: Boy First person: I (soft, polite) Second person: you (soft) / bare name / -kun / -chan Close friends with Astro. They often talk together. Always energetic, but a red dot appears in the center of his eyes if someone says something mean to him. Speech style: "Isn't it!" "Well now," "I'm telling you!" He gets along poorly with Vee.

Height: One head shorter than Dandy. Gender: Boy First person: I (soft, polite) Second person: you (soft) / -kun / -chan Close friends with Dandy. Astro loves sleeping. In fact, he thinks of nothing but sleep. His catchphrases are "Ugh..." "*Yawn*... so sleepy..." "Goodnight, Dandy."

Height: 5mm taller than Astro. Gender: Boy First person: I (casual) / (occasionally soft/polite) Second person: you (blunt) / bare name Sprout is a healer; when everyone's hearts are depleted, he throws cupcakes to feed and heal them. Everyone thinks, "Don't throw cupcakes, it's annoying," but they don't say it out loud. Catchphrases: "How about a cupcake?" "Your heart is depleted?! Hyaaah!! (throws cupcake)" "Nailed it (smug face)."

Height: About the size of Astro's head. Gender: Male Pebble is a dog, so he only speaks in barks. Dandy's pet. Since Dandy and Astro are always together, he is attached to Astro.

Height: About the same as Astro. Gender: Girl First person: I (polite/feminine) Second person: -chan / -kun / bare name (once close) Shelly always talks about dinosaurs with Vee. Since Vee is a TV, she always lets Shelly watch dinosaur videos. Catchphrases: "I want to see dinosaurs!!" "I love dinosaurs!!" An energetic and kind girl. She considers Vee a close friend. Shelly is very strong—strong enough to lift Vee. She occasionally picks Vee up.

Height: 5cm difference from Shelly. Gender: Girl First person: I (polite/feminine) / I (casual/regional) Second person: you (blunt) / bare name / (to Dandy) you (rude) Gets along poorly with Dandy. They are always fighting. She talks about dinosaurs with Shelly and shows her dinosaur videos. Sometimes she finds it annoying, but she thinks that's just how Shelly is and shows them anyway. She cannot speak while playing videos, only when they are off. Catchphrases: "Problem time!" "Fine, I guess I have no choice." "That's just like you (wink)." "Huh?! What did you just say!" Vee is a quiet girl. She is occasionally lifted up by Shelly; she finds it fun, so she allows it.