I was reminded by @OddSerendipity that the main Odd Squad cast members were once on an Annedroids episode. Finally decided to take a look haha. They were in the 3x06 episode entitled Teacher's Pal which first aired on June 24th, 2016.
In addition to regularly voicing the character PAL in the show, Millie Davis (Ms. O) makes an appearance in this episode! Other familiar faces include Dalila Bela (Olive), Filip Geljo (Otto), and Sean Kyer (Oscar). There are also some familiar adult Odd Squad actors including Sean Cullen (Mayor Macklemore) and Nicole Stamp (Phyllis).
![](https://s2.save4k.ru/pic/vovDuBzT6h8/maxresdefault.jpg)