The timeline of the series may or may not take place in episode order. Some indicators exist.
- Let The Games Begin introduces Kat, precedes all others
- Beware The Were-Coop precedes all episodes Dennis knows Kat is an alien
- Something About Fiona first Coop-Fiona meeting, precedes all her later episodes
- Cheeks of Evil first Kat-Cheeks meeting, precedes Turn The Other Cheeks where they know each other.
- Turn The Other Cheeks first Coop-Cheeks meeting, precedes Strange Kat on a Train where Coop knows Cheek's voice already
- It's All In Your Head occurs after a previous episode involving the secret agents since Millie Burtonburger says they are back, referring to a prior encounter when they visited the home, like in Over the Radar
- Mind Games likely precedes other episodes where Millie has exhibited weather-altering powers
- Me Coop, You Kat likely precedes other episodes where Coop has exhibited extreme durability
- The Incredible Shrinking Coop occurs on Father's Day
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