I am pretty sure there will be two types of companions, the tadpole origin characters and the non-origin non-tadpole ones.
Because if they said you need to commit with the companions you selected in act 1, they didn't say you won't meet new companions afterwards. And I think Minsc, for example, will come later and you won't be able to choose him as your main character.
Last edited by Nyanko; 22/11/20 10:38 AM.
