* Design team: The design team is responsible for developing the design concepts that will be presented at the charrette. This team typically includes architects, engineers, and other design professionals.
* Facilitators: Facilitators help to guide the charrette process and ensure that all participants have an opportunity to contribute.
* Observers: Observers are people who are interested in the charrette but do not have a direct stake in the outcome. This group may include members of the public, elected officials, and representatives from community organizations.