Is there a chatbot program that can use multiple characters?

I want to try an ensemble cast type thing. I want to have multiple characters. Is there something like this? You can technically do it with character.ai, but it doesn’t pull any info from the bio.

Is there a program where I can do something like this? I am indifferent to if it is nsfw or not. I want to, say, go sailing with a first mate, a talking wise owl as a pet, etc. Maybe 2-3 distinct characters in the story, each with their own bio. Or maybe a war; 2-3 ‘good guys’ and 2-3 ‘bad guys’? Does anything like this exist/what is the best platform for this?