The Mad Men star has signed up to compere the We Hate Hurricanes event next month (Dec12) at Club Nokia in Los Angeles.
Comedians Will Ferrell, Aziz Ansari and Sarah Silverman will join Hamm onstage, and the audience will also be entertained with performances from rocker Beck and other yet-to-be-announced acts.
All proceeds from the show will benefit AmeriCares, a disaster relief aid organisation which provides immediate medical response after emergencies and long-term humanitarian assistance.
We Hate Hurricanes will take place just two days before 12.12.12 - a star-studded Sandy benefit concert that will be held at New York's Madison Square Garden.
The actors, along with Betty White, Carrie Fisher, Leonard Nimoy and Patrick Stewart, agreed to tape a limited number of custom-made messages after veteran entertainer Ed Asner came up with the idea to raise funds for advocacy group Autism Speaks.
The personalised messages won't come cheap - they are priced at $299 (£187) each and are only available for one week from 3 December (12).
The Zoolander star was feted at the Los Angeles gala on Thursday (15Nov12) for his contributions to the film industry and a handful of his celebrity pals were on hand to speak on his behalf, including Martin Short, Will Ferrell, and Jennifer Aniston's fiance Justin Theroux.
But because backstage handlers accidentally dropped Stiller's prize just before the ceremony, officials asked to borrow one owned by Downey, Jr. so the funnyman could still have something to hold onto on his big night - even though it was inscribed with the wrong name, reports industry publication Variety.
The Zoolander star followed in the footsteps of previous winners Robert Downey Jr., Julia Roberts and Al Pacino when he was presented with the award at the Beverly Hilton Hotel in Beverly Hills, California.
The star-studded event was attended by Stiller's actress wife, Christine Taylor, his Along Came Polly co-star Jennifer Aniston and her partner Justin Theroux, as well as long-time acting pals Will Ferrell and Jack Black.
Stiller tells E! Online, "It's really nice to be asked to be honoured like this. It's kind of bizarre. I feel grateful but also unworthy of the whole thing."
The movie hunk plays a superspy addicted to social media in the skit for FunnyOrDie.com, re-creating key scenes from new 007 movie Skyfall with a comedic twist.
Lutz, as Agent Hashtag, is seen "live tweeting" during a car chase, posting his mission exploits on Facebook.com, and facing off with a bad guy in a blonde wig, reminiscent of Javier Bardem's Skyfall villain Silva.
Lutz posted a link to the video on his Twitter.com account, writing, "Guess what time it is... It's Funnyordie time!!! Hashtag, Agent Hashtag, at your service... Poke me or else!!"
Other stars to have previously filmed sketches for FunnyOrDie, which was set up by Will Ferrell, include Lindsay Lohan, Jennifer Aniston, Zach Galifianakis, Eva Mendes, Megan Fox and Natalie Portman.
The winners will team up with the Elf star for an intimate lunch at the Blind Lady Ale House next month (Dec12) after riding on the red double-decker bus to three craft beer bars in North Park, near San Diego, California.
The four fans will get VIP treatment when they join 120 other revellers on the coach and, in a typically comedic touch, organisers have promised each attendee will be given "the most glorious red jumpsuit you have ever worn in order to get into the spirit of the holiday season".
Ferrell hopes to raise money for Cancer for College, set up by his long-time friend Craig Pollard, in order to help cancer survivors attain an education.
Bidding closes on Wednesday (14Nov12) and is expected to raise $20,000 (£12,500) according to CharityBuzz.com.
The Anchorman: The Legend of Ron Burgundy star took part in the Rock 'n' Roll Los Angeles Halloween Half Marathon in aid of the American Society for the Prevention of Cruelty to Animals (ASPCA).
He was cheered on by fans before reaching the finishing line in just under two hours and four minutes.
Reality TV star Brandon Jenner and his singer wife Leah Felder were also among the runners, as was actor Eric Nenninger.
Robert Zemeckis is a blockbuster director at heart. Action has never been an issue for the man behind Back to the Future. When he puts aside the high concept adventures for emotional human stories — think Forrest Gump or Cast Away — he still goes big. His latest Flight continues the trend revolving the story of one man's fight with alcoholism around a terrifying plane crash. Zemeckis expertly crafts his roaring centerpiece and while he finds an agile performer in Denzel Washington the hour-and-a-half of Flight after the shocking moment can't sustain the power. The "big" works. The intimate drowns.
Washington stars as Whip Whitaker a reckless airline pilot who balances his days flying jumbo jets with picking up women snorting lines of cocaine and drinking himself to sleep. Although drunk for the flight that will change his life forever that's not the reason the plane goes down — in fact it may be the reason he thinks up his savvy landing solution in the first place. Writer John Gatins follows Whitaker into the aftermath madness: an investigation of what really happened during the flight Whitaker's battle to cap his addictions and budding relationships that if nurtured could save his life.
Zemeckis tops his own plane crash in Cast Away with the heart-pounding tailspin sequence (if you've ever been scared of flying before Flight will push into phobia territory). In the few scenes after the literal destruction Washington is able to convey an equal amount of power in the moments of mental destruction. Whitaker is obviously crushed by the events the bottle silently calling for him in every down moment. Flight strives for that level of introspection throughout eventually pairing Washington with equally distraught junkie Nicole (Kelly Reilly). Their relationship is barely fleshed out with the script time and time again resorting to obvious over-the-top depictions of substance abuse (a la Nic Cage's Leaving Las Vegas) and the bickering that follows. Washington's Whitaker hits is lowest point early sitting there until the climax of the film.
Sharing screentime with the intimate tale is the surprisingly comical attempt by the pilot's airline union buddy (Bruce Greenwood) and the company lawyer (Don Cheadle) to get Whitaker into shape. Prepping him for inquisitions looking into evidence from the wreckage and calling upon Whitaker's dealer Harling (John Goodman) to jump start their "hero" when the time is right the two men do everything they can to keep any blame being placed upon Whitaker by the National Transportation Safety Board investigators. The thread doesn't feel relevant to Whitaker's plight and in turn feels like unnecessary baggage that pads the runtime.
Everything in Fight shoots for the skies — and on purpose. The music is constantly swelling the photography glossy and unnatural and rarely do we breach Washington's wild exterior for a sense of what Whitaker's really grappling with. For Zemeckis Flight is still a spectacle film with Washington's ability to emote as the magical special effect. Instead of using it sparingly he once again goes big. Too big.