Link: https://en.wikipedia.org/wiki/Craig_Bartlett

Also, his brother is Matt Groening, the guy who created The Simpsons.

I remember Craig's face from the PBS commercials/postcredits for Dinosaur Train. Years passed, then I was force feeding my kids Hey Arnold! and saw Craig Bartlett in the credits. Had to look him up and was happy to see it's the same guy.

Matt Groening is his former brother-in-law. Dinosaur Train was in the rotation when mine was little. It's not a top-tier "parents will notice the layers" one, but it's very tolerable and a good show for the littles.

There were much worse shows than Dinosaur Train. Even adults could learn something while their kid watched.
Now Caillou on the other hand...

I liked the way they'd introduce non-dinosaurs (and sneakily, the main pterosaur family are not technically dinosaurs either) from the fossil record, like the giant snake. There were definitely WAY worse things that I sat through, but PBS kids of that era had a ton of good shows (and now too? I dunno because it doesn't have Hatsune Miku and friends so therefore my daughter doesn't care). She actually still has an "Odd Squad" lore book in her backpack.

I learned SOOO much about dinosaurs when my kid was little. Aaaaall Abooooooard!