| Dan Castellaneta | ... | Homer Simpson / Abraham Simpson (voice) | |
| Julie Kavner | ... | Marge Simpson (voice) | |
| Nancy Cartwright | ... | Bart Simpson / Additional Voices (voice) | |
| Yeardley Smith | ... | Lisa Simpson (voice) | |
| Hank Azaria | ... | Moe Szyslak (voice) | |
| Harry Shearer | ... | Kent Brockman / Ned Flanders (voice) | |
| Alison Krauss | ... | Herself (voice) | |
| Union Station | ... | Themselves (voice) | |
| Julian Assange | ... | Himself (voice) | |
| Kelsey Grammer | ... | Sideshow Bob (voice) | |
| Jackie Mason | ... | (voice) | |
| Chris Edgerly | ... | (voice) | |
| Pamela Hayden | ... | Milhouse Van Houten (voice) | |
| Tress MacNeille | ... | Dolph (voice) |
| Episode Crew |
Directed by | |||
| Matthew Nastuk | |||
Writing credits | ||
| Matt Groening | (creator) | |
| James L. Brooks | (developer) & | |
| Matt Groening | (developer) & | |
| Sam Simon | (developer) | |
| Michael Price | (written by) | |
Original Music by | |||
| Alf Clausen | |||
Visual Effects by | |||
| Steven Fahey | .... | visual effects artist | |
Animation Department | |||
| Desiree E. Craig | .... | animation production associate | |
| Rachel Greenberg | .... | animation production assistant | |
| Erika Isabel Vega | .... | scene planner | |
Editorial Department | |||
| Larry Field | .... | digital intermediate colorist | |
| Paul Amadeus Kim | .... | non-linear digital assistant | |
| Kurtis Kunsak | .... | assistant editor | |
Music Department | |||
| Alf Clausen | .... | orchestrator | |
| Scott Clausen | .... | orchestrator | |
| Dell Hake | .... | conductor | |
| Dell Hake | .... | orchestrator | |
| Chris Ledesma | .... | music editor | |
| Rick Riccio | .... | music mixer | |
| Series Crew These people are regular crew members. Were they in this episode? |
Writing credits(in alphabetical order) | ||
| Matt Groening | creator | |
Film Editing by | |||
| Tim Long | |||
Art Department | |||
| Jeff 'Swampy' Marsh | .... | storyboard artist (multiple episodes) | |
| Chris Reccardi | .... | storyboard artist (1992-1993) | |
| Lance Wilder | .... | design supervisor (1989-) | |
Sound Department | |||
| Alek Bromke | .... | voiceover recording assistant | |
| Colin Cooper | .... | voiceover recordist | |
| Colette Dahanne | .... | adr mixer | |
| Jesse Dodd | .... | adr recordist (as Jesse K-D. Dodd) | |
| Yuri Gorbachow | .... | adr recordist (1991) | |
| Louise Jaffe | .... | sound mixer | |
| Conner Moore | .... | adr recordist | |
| Roger Morris | .... | adr mixer | |
| John Rotondi | .... | sound engineer: Y4 | |
| Eric Shemkovitz | .... | adr recordist | |
Visual Effects by | |||
| Simon de Jong | .... | visual effects | |
| Adam Howard | .... | digital compositor | |
| Steven J. Scott | .... | digital compositor | |
Camera and Electrical Department | |||
| Ron Eisenberg | .... | still photographer | |
Animation Department | |||
| Julie Forte | .... | animator | |
| Erick Geisler | .... | background color key (season 1) | |
| Aimee Major | .... | character layout artist (2004-2005) | |
| Ted Mathot | .... | character layout artist (1994-1995) | |
| Nollan Obena | .... | character layout artist | |
| William Powloski | .... | animator | |
| Anthony Ho Wong | .... | character layout artist | |
Casting Department | |||
| Jenifer Newman | .... | casting assistant (1994-1995) | |
Editorial Department | |||
| Patrick Buchanan | .... | color timer | |
| Geoffrey Mark | .... | post-production coordinator | |
Music Department | |||
| Frank Bennett | .... | orchestrator | |
| Brad Dechter | .... | orchestrator | |
| Jason Lloyd | .... | scoring assistant | |
| Don Nemitz | .... | orchestrator | |
| Gregory Prechel | .... | orchestrator | |
| John Rodd | .... | orchestral scoring recordist | |
| John Rotondi | .... | scoring engineer: Y4 | |
| Tom Steel | .... | scoring assistant | |
| Damon Tedesco | .... | scoring assistant | |
Other crew | |||
| Greg Camilleri | .... | executive assistant to vice president of production | |
| Michael Gerard | .... | retakes | |
| Lawrence Jonas | .... | assistant to producer | |
| Kian Kaul | .... | assistant to writer | |
| Ani Martirossians | .... | production assistant | |
| Main series | Episode guide | Full cast and crew |
| Company credits | IMDb TV section | IMDb Animation section |
I don't think this was the best way to mark The Simpsons' 500th episode milestone. There have been far superior episodes this season, such as The Book Job and Holidays of Future Passed. At Long Last Leave was a bit of a let-down. They did a couple cool things, like the alternate beginning theme and Homer and Marge sneaking around Springfield, but other than that there were very few smiles to be had.
The plot utilized in the episode has been tread in different variations plenty of times in previous Simpsons episodes - to greater effect. Even the idea of Springfield having a secret meeting was eerily similar to the classic Malcolm in the Middle episode where the town has a block party every time Malcolm's family goes out of town. I would have liked to have seen some more originality. How many times before have we watched the Simpson family adapt to a new way of life? You'll find that this episode and The Simpsons Movie have a lot in common. What way is that to mark the occasion of reaching 500 episodes? With all that said, it still is a fantastic achievement. I don't think the core of the show is too tired to reach 600 episodes; I think that the writers have settled for what's easy too often since the turn of the millennium.
Here's to many more episodes, and here's to hoping they're better than this one.