
Seren |
Temporary absence: The player can choose between the character being in the foreground or background. If they're in the background, they're assumed to be lurking just 'off screen' but can provide out of combat healing or other support when the party isn't threatened. If they choose 'foreground', then they participate, but have hitpoints and run the risk of dying. If they choose background, adjust the combats. Removing one of the lieutenants / mooks from most combat will do the trick.
Permanent absence: Depends on where we are in the story, but there are lots of ways out that could work. Examples:
New player: Lots of NPCs can have a reason to join the PCs. Give them the overall view of the character and let them customize. For instance, if they like Trinia, they can come in with either Trinia the bard, Trinia the rogue, Trinia the Sorceress, or Trinia the multiclass fighter/rogue/enchantment specialized sorceress.