[jayef]

Your objection makes no sense. It is no more nonsensical to have Chewbacca in both series than it is to have Kenobi and Vader. You're sucking wind on this one.

[inquest]

It is no more nonsensical to have Chewbacca in both series than it is to have Kenobi and Vader.

We know from the first movie that Kenobi and Vader knew each other and had quite a history. There's not much in that movie which suggests that Chewbacca had any involvement in any of this.