For me,Scarf would most likely commit theft.

Candystripe would probably be malicious mischief

Mr T: tax fraud/embezzlement
The Hunter: shooting a long range sniper within a 50 meter range and trespassing on military grounds
BANE: multiple war crimes and a terrorist attack

Blook: Being a dumbass
Pixer: Straight up just murder

"would"?

Void the Axolotl: kidnapping (don't ask)
JImmy: manslaughter

Eggy would probably be arrested for public indecency by a jealous cop for giving Peyton (his gf) a kiss
(Peyton is meant to be very attractive so a lot of people would be jealous of him)

so my guy (the updooting stranger) would probably commit:
Blackmailing (during missions)
Murder (fighting)
Mass murder (accidentally)
Arson (undergoing a fire related energy attack)
Disturbing the peace (loud sounds while fighting)
Possession (when in spiritual form)
Identity fraud (when disguised as someone else)

And also some property damage

Lol most of my OCs would be horrible criminals.

Nolan: Aggravated assault, Mass property damage, 2nd degree mvrd3r.
Colt: Harassment, non-aggravated assault, petty theft, kidnapping.
Colt's sister: (None because she's too perfect, but.) Accomplice to Colt, petty theft, fraud.
Louis: Illegal drug possession, bribery, kidnapping.
Agni: Accomplice to Louis, Arson.
4370: Criminal conspiracy, battery, assault w/ weapon, 1st degree mvrd3r.
R0Z3: (Worst criminal out of all my characters so get ready.) Stalking, Conspiracy, mass mvrd3r, poisoning, kidnapping, cannibalism, crimes against humanity, cyber-crimes.
The Boss: 2nd degree mvrd3r, t3rr0rism, extortion.
Atlas: Conspiracy, obstruction of justice, fraud, identity theft.
Carl: (Pretty sure destroying entire timelines is illegal, right?)