Final answer:
An actor portraying a psychologist on CSI: Miami would be identified as a psychologist within the show's context. Forensic psychologists in real life apply psychological principles within the legal system and have roles distinct from other forensic specialists.
Step-by-step explanation:
An actor portraying a psychologist in an episode of CSI: Miami would be most accurately described as a psychologist while acting within the context of that media representation. However, in a true forensic setting, forensic psychologists are professionals who apply psychological principles in the legal system, differing from other roles such as forensic experts, crime scene investigators, and criminal profilers. Forensic psychologists may contribute to a variety of court-related activities, such as assessing competency to stand trial, consulting on child custody cases, and advising on eyewitness testimony and children's testimony. They are also involved in jury selection and witness preparation. Unlike the broader role of psychologists, forensic psychologists have specialized training to interface with the legal system and often provide expert witness testimony.