"Lassiter" is a fictional character from the popular television series Psych. He is portrayed as a tough, no-nonsense detective with the Santa Barbara Police Department. Known for his strong sense of justice, Lassiter often finds himself at odds with the show's main character, Shawn Spencer, who uses his keen observational skills to solve crimes. The character is played by actor Timothy Omundson and is recognized for his dry humor and dedication to his work. Throughout the series, Lassiter's character evolves, revealing a more vulnerable side while maintaining his professional demeanor. His interactions with other characters add depth to the show's comedic and dramatic elements.