Some folks whom you might consider secondary
players can face criminal charges. That's because the law punishes those who
participate in crime without directly doing the dirty deed.
Accomplices, Accessories, Aiders, and Abettors
State laws define criminal actors—such as principals, accomplices (sometimes called “aiders and abettors”), and accessories—differently depending on how they participate in a crime.
What state of mind is required for aiding and abetting?
Under the principle of accomplice liability, you can be convicted of a crime simply for help
Can you be an accessory after the fact to a misdemeanor?
An accessory after the fact is someone who, knowing that another person has committed a felony, helps that person avoid arrest, trial, or punishment.