Defcon
The TV-only character. I've haven't heard or seen him until I saw his entry by Tengu of the Transformers Multiverse. The text was based on entry bio. Once again, Dan Khanna has drawn the excellent picture.
Credits
Defcon image: Dan's Robot Art
Defcon Text Spec text: Based on this page of the Transformers Multiverse
Base Tech image: Beachcomber's Tech Spec from the International Transformers Tech Spec Archive