Aboard Aviva's newly designed Deep Sea Explorer, the Wild Kratts team ventures to the last creature frontier -the Deep Sea. The challenges of the deep are many, and when ultimately they are forced to make a decision, the Wild Kratts must decide what is truly important.
| Actor | Role |
|---|---|
 Chris KrattChris (voice) | Chris (voice) |
 Martin KrattMartin (voice) | Martin (voice) |
 Heather BambrickKoki (voice) | Koki (voice) |
 Makenna Lyn BeattySani (voice) | Sani (voice) |
 Zachary BennettZach Varmitech(voice) | Zach Varmitech(voice) |
 Cory DoranDabio/Rex (voice) | Dabio/Rex (voice) |
| AAnnelise ForbesJenny | Jenny |
| RRonan KrattRonan | Ronan |
 Jonathan MalenJimmy J | Jimmy J |