Prosecutors say in late December, Thompson brandished a BB gun at Wyoming Hot Wings and the Big D on East 12th Street, demanding money from an employee in each incident.
Charging papers say Rollison and three others went to a trailer home in Evansville during July 2015 in order to take marijuana and other items from someone.
Charging papers say Lawson sold meth for Christopher Eads, who brought large amounts of heroin into the Casper area as well as small quantities of meth.