The Emmy Award-winning medical drama House M.D. stars Hugh Laurie as Dr. Gregory House, a brilliant but maverick doctor who, as head of the Department of Diagnostic Medicine at the fictional Princeton-Plainsboro Teaching Hospital in New Jersey, solves dire medical mysteries with the help of an elite team of young doctors.

1. Hugh Laurie plays "Gregory House"
2. Robert Sean Leonard plays "James Wilson"
3. Omar Epps plays "Eric Foreman"
4. Jesse Spencer plays "Robert Chase"
5. Jennifer Morrison plays "Allison Cameron"
6. Lisa Edelstein plays "Lisa Cuddy"
7. Peter Jacobson plays "Chris Taub"
8. Kal Penn plays "Lawrence Kutner"
9. Olivia Wilde plays "Thirteen"

• Original Airdate: September 25, 2007
• TVGuide.com: House "Alone" Episode 1 Guide
  • "House is working solo (with some diagnostic help from a hospital janitor) as Season 4 begins. While Cuddy and Wilson nag him to hire a new team, he must treat a young woman who was injured in an explosion. But her injuries aren't what's killing her. Indeed, her repeated crises, each of which House treats successfully, seem to be caused by personal behaviors that baffle her boyfriend. Meanwhile, House's new prized possession, a 1967 Gibson Flying V guitar, is missing."
• Official Site: House "Alone" Episode 1 Recap
• TV.com: House "Alone" Episode 1 Recap
• IMDb: House "Alone" Episode 1 Guide

• Original Airdate: October 2, 2007
• TVGuide.com: House "The Right Stuff" Episode 2 Guide
  • "A prospective astronaut has an attack of synesthesia in a flight simulator, then asks House to diagnose her off the books. House shares the case with the candidates he has rounded up to replace Cameron, Chase and Foreman (40 of them, initially). Meanwhile, House sees his three former underlings in the hospital---or thinks he does."
• Official Site: House "The Right Stuff" Episode 2 Recap
• TV.com: House "The Right Stuff" Episode 2 Recap
• IMDb: House "The Right Stuff" Episode 2 Guide

• Original Airdate: October 9, 2007
• TVGuide.com: House "97 Seconds" Episode 3 Guide
  • "When a man in a wheelchair who fainted while crossing a street arrives at the hospital, House tells the 10 remaining candidates to divide themselves into teams. The one that diagnoses the man properly won't be fired. They split up based on gender, but one woman (Anne Dudek) opts to join the men. Meanwhile, a patient sticks a knife into a wall socket for reasons that intrigue House; and Foreman's new diagnostic team at Mercy Hospital in Manhattan faces a tough case."
• Official Site: House "97 Seconds" Episode 3 Recap
• TV.com: House "97 Seconds" Episode 3 Recap
• IMDb: House "97 Seconds" Episode 3 Guide

• Original Airdate: October 23, 2007
• TVGuide.com: House "Guardian Angels" Episode 4 Guide
  • "While having a seizure, a funeral-home cosmetician (Azura Skye) hallucinates that she's being assaulted by one of the corpses she's working on. And later, in the hospital, she acts as though her dead mother is in the room with her. Meanwhile, Cameron offers advice to one of the seven candidates for House's team; and Foreman has lunch with Cuddy."
• TV.com: House "Guardian Angels" Episode 4 Recap
• IMDb: House "Guardian Angels" Episode 4 Guide

• Original Airdate: October 30, 2007
• TVGuide.com: House "Mirror, Mirror" Episode 5 Guide
  • "A mugging victim with amnesia apes people around him. He also has a protein abnormality that's turning his blood to "sludge." Meanwhile, Cuddy assigns her latest hire to be her "eyes and ears" on House's team, displeasing House considerably; and doctors around the hospital (candidates included) are betting on House's hiring decision."
• TV.com: House "Mirror, Mirror" Episode 5 Recap
• IMDb: House "Mirror Mirror" Episode 5 Guide

• IMDb: House "Whatever It Takes" Episode 6 Guide