regressor Mav headcanons ! (going off TGM here)
mostly regresses to ~5 years, very rarely regresses to literal baby age or older kid/teen
absolute little chaos gremlin
main cg is Rooster, calls him either Papa Roo or just Papa/Roo
Daggers frequently also jump in as cgs
Loves playing outside and drawing
Always manages to get himself dirty
"Noooo I'm not tired! I can stay up all night!" and is knocked out after 5 minutes of TV
Usually super uninterested in conversations unless it's about planes
Pretty independent child and will get super cranky if someone tries to help him out
Misbehaves on purpose a lot for the attention
Actually super scared of his cgs being mad at him long term and will come up crying to ask if they're still upset
Doesn't admit it but loves cuddles
Hangman got him a plush of a goose once (Rooster thought it was super insensitive) and Mav's dragging it around everywhere
The goose is the only thing he keeps relatively clean, he's absolutely in shambles everytime it gets dirty and needs to be washed
Knows exactly how to be cute and charming in the right moments to get what he wants
Wants to help with EVERYTHING
Always listening in on conversations when he's not supposed to, and will tell people things they're not supposed to know
"Bob!!! Uncle Jake said you're really cute!" "THAT'S NOT TRUE YOU LITTLE SH–"
Knows exactly how to set his cgs up against each other
Despite everything he is really really prone to emotional breakdowns and usually only Rooster can help him out
I'm maybe gonna make another post for the Daggers as his cgs :)