Kyle MacLachlan Special Agent Dale Cooper Actor Michael Ontkean Sheriff Harry S. Truman Actor Mädchen Amick Shelly Johnson Actor Dana Ashbrook Bobby Briggs Actor Richard Beymer Benjamin Horne Actor Lara Flynn Boyle Donna Hayward Actor Sherilyn Fenn Audrey Horne Actor Warren Frost Dr. Will Hayward Actor Peggy Lipton Norma Jennings Actor James Marshall James Hurley Actor Everett McGill Big Ed Hurley Actor Jack Nance Pete Martell Actor Ray Wise Leland Palmer Actor Joan Chen Jocelyn Packard Actor Piper Laurie Catherine Martell Actor Eric DaRe Leo Johnson Actor Harry Goaz Deputy Andy Brennan Actor Michael Horse Deputy Tommy "Hawk" Hill Actor Sheryl Lee Laura Palmer Actor Russ Tamblyn Dr. Lawrence Jacoby Actor Grace Zabriskie Sarah Palmer Actor Don S. Davis Major Garland Briggs Actor Mary Jo Deschanel Eileen Hayward Guest Star Charlotte Stewart Betty Briggs Guest Star Gary Hershberger Mike Nelson Guest Star Wendy Robie Nadine Hurley Actor Kimmy Robertson Lucy Moran Actor Catherine E. Coulson The Log Lady Actor Alan Ogle Janek Pulaski Guest Star Michelle Milantoni Suburbis Pulaski Guest Star Jill Engels Trudy Guest Star Al Strobel One-Armed Man Guest Star Laurel White Nurse Greta Guest Star Frank Silva Bob Guest Star Duwayne Dunham Director Mark Frost Writer David Lynch Writer