Hey, @DKissinger 
I set up a free account to test this out. Here’s what I did:
- created a Task
- completed the task
- adjusted the filters to show completed Tasks
- hover over a record
- click the “History” button
- from there I can see all actions associated with the Task including the time and User or other automation that completed the task
GIF of my view from a Free HubSpot account
Talk soon! — Jaycee