I searched using the name in the bottom-right, and he/she is a developer who created an open source tool to construct the graph from historical GitHub incidents. It’s hosted here and the source is here

This analyses what’s publicly known: https://www.wheresyoured.at/the-haters-gui/?ref=ed-zitrons-wheres-your-ed-at-newsletter

Toota (Berry) - ~6 years old lady

Sophie - ~1 year old goat in a cat’s body (4-5 months at the time of this video IIRC)