Catbert is knit in the round (because I hate seaming) and is worked almost completely in stocking stitch with basic increases and decreases. There are a few bobbles, but they’re not too tricky if you’re comfortable with the basics.
You can find the pattern here https://docs.google.com/document/pub?id=1_ezEBig5s7SZ6yc-kdxjx5B851eJDojZTWE2qQirVwg
Want to start a whole Dilbert family? You can find Dogbert here https://www.instructables.com/id/Dogbert-Plushie/
Now I've got to decide who comes next; Ratbert or Dilbert