Ages?

I would say most of the actors are between 10-12 years of age.

The 1st episode of season 2 is giving me a vibe that Agents Otto & Olive were "reassigned" because the producers thought they were getting too old. Hopefully their apparent departure is a plan to make an Odd Squad spin-off show. Perhaps this is a small delay until their voices change. Whatever the reason, the new characters haven't slowed down the story flow one little bit. I wonder what secret Otis seems to be hiding....