 Sheryl Lee, who played Laura Palmer and Maddy Ferguson, guest stars as Dr. Donna "Doc" Gooden, Dual Spires' psychiatrist, pediatrician, optometrist, gastrologist, podiatrist, dermatologist, orthodontist, forensic scientist, veterinarian, lawyer, and accountant.Dana Ashbrook, who played Bobby Briggs, guest stars as Robert "Bob" Barker.Robyn Lively, who played Lana Budding Milford, guest stars as Michelle Barker.