I'm not sure specifically about his role in 'Police Story' without more research. But generally, he might have played a police officer or a character related to the police operations in the story.
Since Erik Estrada starred in 'Police Story', his performance was likely a significant part of what made the movie appealing. He may have used his physicality to great effect, perhaps in chase scenes or in confrontations. His facial expressions and line delivery would have helped to convey the character's thoughts and feelings. Moreover, his interaction with other actors in the movie would have created the relationships and tensions necessary for a good police - themed story. If he played a police officer, he might have shown the different aspects of the job, like the stress, the loyalty to the badge, and the relationships with the community.
Ryan in'my 600 lb life ryan's story' is probably an individual who has been struggling with obesity. He is the focus of the story, and his experiences, such as his daily life, his relationship with food, and his attempts to change his situation, are what the story is about. He might be someone who has faced numerous challenges, both physical and emotional, because of his weight.
There's not enough given to precisely define who Jackie Ryan is in 'black jack the jackie ryan story'. She might be an ordinary person who gets involved in extraordinary events related to 'black jack'. Maybe she's a gambler if 'black jack' refers to the card game, or she could be someone who has a symbolic connection to the concept of 'black jack' in a more abstract story.
Debby Ryan is an actress. She has been in various television shows and movies. For example, she was in the Disney Channel series 'Jessie' where she played the lead role of Jessie Prescott. She has shown her acting skills and charm in her performances, winning the hearts of many viewers, especially among the younger audience.
In The OC fanfiction, 'Ryan Blind' could be a character that serves various purposes. It might be a character who represents a different social class or has a particular skill set that the author wants to explore. For example, if the fanfiction delves into the world of art, Ryan Blind could be a blind artist who has a unique perspective on life. He could also be a character used to create drama or conflict, like being in love with Marissa but facing some obstacle due to his blindness or some other aspect of his character.