Is there anyway I can see who the last person to update a ticket was from a queue? We have all our tickets in a queue, I can see when they were last updated, but not who did it. Is this possible?
Unfortunately this is not possible. There is no field in Jira that holds the user that did the last update on an issue.
You could achieve this with the combination of custom scripting from plugins and a custom field, but add-ons come at a cost of course. If you are however interested in such setup, I advise to take a look at ScriptRunner by adaptavist.