WFM & FA - Remove Temp/seasonal staff from reporting

Is there a way to remove temp staff/employees from reporting?

They are easy to identify as they have uniformed names within People System. 

These people are casual contract hours, and the roles are set up as Contractors – therefore do not hit payroll.  At the moment all their absence impacts results. They want a way to leave their weeks blank if not used, so the team don’t need to add an absence but equally if it is not a payroll role they should not be included in Analytics data.