Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (million)
47 | 1 | "Red Sky at Night" | Chris Long | Bruno Heller | September23,2010 | 3X6401 | 15.50 | 48 | 2 | "Cackle-Bladder Blood" | John Polson | Ashley Gable | September30,2010 | 3X6402 | 14.65 | 49 | 3 | "The Blood on His Hands" | David M. Barrett | Tom Szentgyorgyi | October7,2010 | 3X6403 | 14.39 | 50 | 4 | "Red Carpet Treatment" | Charles Beeson | Daniel Cerone | October14,2010 | 3X6404 | 15.13 | 51 | 5 | "The Red Ponies" | John F. Showalter | Eoghan Mahony | October21,2010 | 3X6405 | 14.42 | 52 | 6 | "Pink Chanel Suit" | Eric Laneuville | Ken Woodruff | October28,2010 | 3X6406 | 14.76 | 53 | 7 | "Red Hot" | Chris Long | Ashley Gable | November4,2010 | 3X6407 | 14.42 | 54 | 8 | "Ball of Fire" | Stephen Gyllenhaal | Tom Szentgyorgyi | November11,2010 | 3X6408 | 13.84 | 55 | 9 | "Red Moon" | Simon Baker | Bruno Heller | November18,2010 | 3X6409 | 14.74 | 56 | 10 | "Jolly Red Elf" | John F. Showalter | Daniel Cerone | December9,2010 | 3X6410 | 13.41 | 57 | 11 | "Bloodsport" | Roxann Dawson | Eoghan Mahony | January6,2011 | 3X6411 | 14.88 | 58 | 12 | "Bloodhounds" | Charles Beeson | Erika Green Swafford | January20,2011 | 3X6412 | 14.82 | 59 | 13 | "Red Alert" | Guy Ferland | Jordan Harper | February3,2011 | 3X6413 | 15.18 | 60 | 14 | "Blood for Blood" | Martha Mitchell | David Appelbaum | February10,2011 | 3X6414 | 14.86 | 61 | 15 | "Red Gold" | Tom Verica | Cindi M. Grossenbacher | February17,2011 | 3X6415 | 15.01 | 62 | 16 | "Red Queen" | Chris Long | Daniel Cerone | February24,2011 | 3X6416 | 14.79 | 63 | 17 | "Bloodstream" | Bobby Roth | Erika Green Swafford | March10,2011 | 3X6417 | 14.28 | 64 | 18 | "The Red Mile" | Darnell Martin | Tom Szentgyorgyi | March31,2011 | 3X6418 | 14.27 | 65 | 19 | "Every Rose Has Its Thorn" | Charles Beeson | Ken Woodruff | April7,2011 | 3X6419 | 15.17 | 66 | 20 | "Redacted" | David M. Barrett | Eoghan Mahony | April28,2011 | 3X6420 | 13.53 | 67 | 21 | "Like a Redheaded Stepchild" | Eric Laneuville | Jordan Harper | May5,2011 | 3X6421 | 14.00 | 68 | 22 | "Rhapsody in Red" | David M. Barrett | David Appelbaum | May12,2011 | 3X6422 | 14.07 | 69 | 23 | " Strawberries and Cream (Part 1) " | Chris Long | Ashley Gable | May19,2011 | 3X6423 | 14.11