Is there any issue you are facing while running the wizard ?
In wizard you can configure the activity to call a report. Create that report in Operator class and pass param as Operator ID and fetch whatever you need. (you can join with other tables as well if required).
Other alternative to achieve this is to use Pega OOTB API. OOTB Data api can be used to invoke a data page and get the response back. Data page can be configured to return operator details.