I agree, there should be companions that we meet along the way back to Baldur's Gate that does not have the option to play as Origin characters. Unless there is a good reason why everyone has a tadpole, as the main character has in their head. We should be able to meet companions without tadpoles in their heads.

And if every companion has a tadpole in their head does that mean the mercenaries have tadpoles in their head like the main character?

I really don't want to meet 15-30 companions in the starter area. I want it to feel like a journey as it did in BG1 and BG2 when meeting these characters.