You're playing an older and experienced character. But your characters has lost their memory somehow. Every now and then a chronological episode if your characters memories comes flashing back to you. In the form of a podcast episode you listen to between sessions.
Everyone could play older version of any character from any podcast the DM has listened to.
You could cripple the characters in some way to start from a lower or reset skill-set. Maybe you're playing children reincarnated so you have to discover your powers alone the same line as you've acquired them in your past life.