Custom "character joins" screen

I want to create a new "character joins" scene so that one of the existing characters can join the team at a different point in the story. It wasn't difficult to figure out how to recreate the joining scenes for the most part, except for one thing. Even after studying the existing joining scenes, I don't understand how to make the new character NOT disappear when the rest of the screen fades to black and their intro text appears. Can anyone advise me?

Thanks!