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- Rhiannon Packer
- Padmacandra,
- R. J. Palacio
- Eiry Palfrey
- Eva Papoušková
- Mike Parker
- Feronia Parker-Thomas
- Annette Bryn Parri
- Harri Parri
- Stifyn Parri
- Gwen Parrott
- Edward Parry
- Gwyn Parry
- Nia Parry
- Non Parry
- T. H. Parry-Williams
- Colin R Parsons
- Lona Patel
- Kev Payne
- Carl Pearce
- Howard Pearlstein
- Dwayne Peel
- Danny Penman
- Roger G. K. Penn
- Lilla Pennant
- Tom Percival
- Nia Peris
- Jayde Perkin
- Cetra Coverdale Person
- Maria Ferreiro Peteiro
- Andrew Fusek Peters
- Zoe Pettinger
- Mari Philips
- Karl Phillips
- L Pichon
- Liz Pichon
- Anwen Pierce
- Katey Pilling
- Caroline Pitcher
- Jennie Poh
- Clair Pollard
- Samuel Pollen
- Isabel Pope
- Mal Pope
- Jem Poster
- Molly Potter
- Meic Povey
- Sarah Powell
- Kate Power
- Sandhya Prabhat
- Adam Price
- Alexa Price
- Angharad Price
- Gareth Price
- Holly Price
- Malcolm Price
- Caradog Prichard
- Geraint a Prichard
- Roger Priddy
- Elfyn Pritchard
- Dewi Prysor
- Ieuan M Pugh
- Christine Purkis
- Will Putnam
- Ali Pye
