Just started the second episode and stopped for a moment. Temuera Morrison cameo? That’s a very distinctive voice. Noticed it before they even showed his face.
I know you haven’t seen the prequels, so I’m gonna clue you in: that’s not a cameo, it’s just his character. Boba Fett is part of a legion of clone soldiers that were basically the first generation of stormtroopers, created using the DNA of a bounty hunter called Jango Fett. Jango is played by Temuera Morrison, so as a result all of his clones (including Boba retroactively) are played by Morrison as well. The beggar in that shot is part of that legion of clones, out of a job after the Empire switched to civilian conscripts.