For each trigger in a template you can specify who should be assigned to the new checklists started by the trigger.
To specify who should be assigned open the trigger page by first open the template page and click Set triggers in the action menu.
Select the trigger in the list you want to configure.
Scroll down to the For who section on the trigger page.
Click the Assign people button. This will display a list of all team members where you select the people from the team that should be assigned to new checklist started from this trigger.
In this example we have added Brad and Emma to the trigger. This means that every time the trigger starts a new checklist both Brand and Emma will be assigned to the new checklist.