Grok Bot already has the roster. The missing piece is a face for each role that still looks like the same crew. A CoolAgents pack is a ZIP of still images made for that.
The short version
Download the pack from your account and give the zipped folder to your agent. Ask it to dress every agent with the images in the folder, matching each file to that agent’s role and using it as the profile picture.
You can say: “Dress up all my agents with the avatars in this zipped folder. Match each avatar to the right agent’s role and use it as their profile picture.”