An "involved member" refers to someone who actively participates or takes part in a group, organization, or community. They contribute their time, effort, and engagement, usually with a specific purpose or goal in mind. Full definition
If you're going before a family court judge, don't assume that they will know about other cases involving members of your family. (justice.gc.ca)
This, we seek to achieve, by involving our members in events catered towards their economic, personal and social growth. (globaleducationmagazine.com)
But it is legitimate for the pastor to facilitate home calls and pastoral care by involving members of a congregation who have gifts in pastoral care. (religion-online.org)