Discover
Lisa discovers a miraculous drug that can cure crankiness in old people. Bart starts illegally selling it to Springfield seniors, only to discover it has a horrifying side effect.
Original Release
03/06/2011
US Release
03/06/2011
Cast
| Name | Character |
|---|
| Dan Castellaneta | Grampa Simpson / Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice) |
| Julie Kavner | Marge Simpson / Patty Bouvier / Selma Bouvier (voice) |
| Nancy Cartwright | Nelson Muntz / Ralph Wiggum / Bart Simpson / Ralph Wiggum (voice) |
| Yeardley Smith | Lisa Simpson / Lisa Simpson (voice) |
| Hank Azaria | Moe Szyslak / Carl Carlson / Delbert Fornby / Chief Wiggum / Apu / Comic Book Guy / Carl (voice) |
| Harry Shearer | Mr. Burns / Principal Seymour Skinner / Otto Mann / Lenny Leonard / Ned Flanders / Smithers / Skinner / Lenny (voice) |
| Werner Herzog | Walter Hotenhoffer |
| Kevin Michael Richardson | Retirement Castle orderly |
| Pamela Hayden | Milhouse Van Houten |
| Tress MacNeille | Agnes Skinner / Crazy Cat Lady / Mrs. Fornby / Flight Attendent |
Directors
Mike B. Anderson, Matthew Schofield
Writers
Billy Kimball, James L. Brooks, Matt Groening, Ian Maxtone-Graham, Sam Simon
Creators
Cast
| Name | Character |
|---|
| Dan Castellaneta | Grampa Simpson / Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice) |
| Julie Kavner | Marge Simpson / Patty Bouvier / Selma Bouvier (voice) |
| Nancy Cartwright | Nelson Muntz / Ralph Wiggum / Bart Simpson / Ralph Wiggum (voice) |
| Yeardley Smith | Lisa Simpson / Lisa Simpson (voice) |
| Hank Azaria | Moe Szyslak / Carl Carlson / Delbert Fornby / Chief Wiggum / Apu / Comic Book Guy / Carl (voice) |
| Harry Shearer | Mr. Burns / Principal Seymour Skinner / Otto Mann / Lenny Leonard / Ned Flanders / Smithers / Skinner / Lenny (voice) |
| Werner Herzog | Walter Hotenhoffer |
| Kevin Michael Richardson | Retirement Castle orderly |
| Pamela Hayden | Milhouse Van Houten |
| Tress MacNeille | Agnes Skinner / Crazy Cat Lady / Mrs. Fornby / Flight Attendent |
| Russi Taylor | Martin Prince |
Producers
| Name | Role |
|---|
| James L. Brooks | Executive Producer |
| Matt Groening | Executive Producer |
| Sam Simon | Executive Producer |
| Ian Maxtone-Graham | Executive Producer |
| J. Stewart Burns | Executive Producer |
| Joel H. Cohen | Executive Producer |
| Kevin Curran | Executive Producer |
| John Frink | Executive Producer |
| Jay Fukuto | Executive Producer |
| Al Jean | Executive Producer |
| Brian Kelley | Executive Producer |
| Rob LaZebnik | Executive Producer |
| Bill Odenkirk | Executive Producer |
| Michael Price | Executive Producer |
| Matt Selman | Executive Producer |
| Matt Warburton | Executive Producer |
| Jeff Westbrook | Executive Producer |
| Marc Wilmore | Executive Producer |
| Dan Castellaneta | Producer |
| Larina Jean Adamson | Producer |
| Dominique Braud | Producer |
| Richard K. Chung | Producer |
| Alexander Duke | Producer |
| Tom Gammill | Producer |
| Valentina Garza | Producer |
| Dan Greaney | Producer |
| Jaspreet Katrib | Producer |
| Brian J. Kaufman | Producer |
| Tom Klein | Producer |
| Tim Long | Producer |
| David Mirkin | Producer |
| Felicia Nalivansky-Caplan | Producer |
| Carolyn Omine | Producer |
| Don Payne | Producer |
| Bonita Pietila | Producer |
| Rick Polizzi | Producer |
| Max Pross | Producer |
| Richard Raynis | Producer |
| Mike Reiss | Producer |
| Andrea Romero | Producer |
| Richard Sakai | Producer |
| Mike Scully | Producer |
| David Silverman | Producer |
| Denise Sirkot | Producer |
