Television:
* EastEnders (1985-1990, 1993-1997) - He played Mark Fowler, a popular character.
* The Bill (1997-2001) - He played Detective Sergeant Neil Manson.
* Heartbeat (2001-2009) - He played PC David Stock.
* Casualty (2010-2012) - He played Dr. Michael "Mick" Nightingale.
* Doctors (2013-2014) - He played Dr. Daniel Granger.
* The Coroner (2015-2019) - He played Dr. Jamie Flynn.
* Holby City (2019-2021) - He played Dr. Henrik Hanssen.
Film:
* The Bill: To Be Continued (1998) - He played Detective Sergeant Neil Manson.
* The Bill: The Movie (2010) - He played Detective Sergeant Neil Manson.
Note: There are other individuals named Paul Nicholls who may have been involved in film and television projects, but this list focuses on the most prominent actor with that name.