There's only one man that could duplicate my writing. Okasa.
6 seconds sound clip from The Master (1984) - Kunoichi (S1E9) sitcom.
You can hear this line at 00:25:05.810 in the Blu-ray version of the TV Series.
Quote context
[...]
- We're stepping up the assassination to tonight.
- At Oakwood's house, the master was also getting himself into trouble.
- Signed, John Peter McAllister.
- There's only one man that could duplicate my writing. Okasa.
- Did you find what you were looking for, John?
- My handwriting. My signature. But I did not send these letters.
- When did you start receiving these?
- You described yourself as a ninja. It was a subculture. I remember it was an obsession with you.
- Take a look at this outfit. It still is.
[...]