I'm not sure who 'Yosi the regretful spy' specifically is in a well - known general sense. There could be many individual or fictional stories with such a name. It might be a very specific or even local story that not many people are familiar with.
Since I don't know the exact story, I can't say for sure. But generally in spy stories, key events might include recruitment. Maybe Yosi was recruited in a sneaky way, like being blackmailed or promised something big. Then there could be the act of passing information, which he later regretted.
The story of Yosi the regretful spy is likely a complex and perhaps not well - known narrative. Maybe Yosi was coerced into becoming a spy initially, and as he delved deeper into the world of espionage, he realized the harm it was causing. It could also be that he had a change of heart after seeing the true nature of the side he was spying for. To truly understand the story, one would need to dig into specific historical or intelligence - related sources.
Again, without more information, it's hard to say for sure. But possible key elements could be the motivation that led Yosi to become a spy in the first place.
I don't know for certain. It could be inspired by real events but could also be mostly fictional. Maybe check with the creators or read some reviews to get a better idea.
Most probably not. 'Spy On' is likely a product of the creator's imagination. While it could incorporate common spy tropes or themes found in real life, it's not based on a specific, factual account.