Thoughts on this Brando signed in a vintage blue ballpoint? I see many familiar characteristics of his signature here. I'm including samples of album pages of verified exemplars that seem to share these characteristics in various ways.
The first name baseline is straight in the OP but rises as it was executed in your posted exemplars. Steve C has Brando knowledge - perhaps he will chime in. Perhaps send him a link to this thread. To me the OP is suspicious and not quite fluid. Baseline aside it seems a bit slow with different slants. The first "o" is also strange in construction.