Continuity mistake: Tony's hair length alternates between a short buzz cut and longer in different shots in the scene where Sil, Paulie and Chris visit him after his mother dies.
Continuity mistake: Livia's hair style keeps changing all the time while having her last talk with Tony. In this scene the Livia character has been superimposed from pre-existing footage as the actress Nancy Marchand had passed away.
Answer: Yup, just like Nicholas Lea was chosen to play Alex Krycek on the X-files after showing up on 1 episode as a different character.
Grumpy Scot