Caroline Catz (born Caroline Caplan) is an English film, television, theatre and radio actress, best known for her role as Louisa Glasson in Doc Martin since 2004. Her other roles have included Detective Inspector Kate Ashurst in Murder in Suburbia, Detective Inspector Helen Morton in DCI Banks, and PC Cheryl Hutchins in The Vice.

• DCI Banks (2011)

  
• Doc Martin (2004)

  
• Murder in Suburbia (2004)

  
• The Vice (1999)

  
• Countdown to Murder (2013)