Twix's Zombie Claus merges Halloween and Christmas for a second Hallowmas

Give Twix's 'Two Is More Than One' platform a seasonal expression after the 2025 launch of Hallowmas, and give it a second-year film.

One mascot for two holidays: a Zombie Claus who delivers frights and festive cheer at once, merging Halloween and Christmas into a single Twix season.

adam&eve\TBWA and director Tim Bullock (Rogue Films) sent Zombie Claus to a teenager's door; she deadpans whether to be 'happy or terrified', 'sing a carol or hit him with a baseball bat'. VFX by Untold Studios.

Mars renewed the campaign for a second consecutive year, with the character and the merged 'Hallowmas' season kept intact; no sales figures were disclosed.

For the second year running, Mars' Twix is fusing Halloween and Christmas into 'Hallowmas', bringing back Zombie Claus — built to deliver fear and festive joy at once, extending the brand's 'Two Is More Than One' platform. The 2026 lead film, by adam&eve\TBWA and Rogue Films with director Tim Bullock, shows Zombie Claus arriving at a teenager's house shouting 'Happy Hallowmas'; the unimpressed teen asks whether to be 'joyful or terrified', 'scared or drooling', or to 'sing a Christmas carol or whack him with a baseball bat'.

Mars launched Hallowmas in 2025, introducing Zombie Claus as the mascot of the merged season. 'By uniting Halloween and Christmas through Zombie Claus, we are creating a season that offers double the fun, scares and festive spirit,' Allison Miazga-Bedrick, vice-president of marketing for Mars' seasonal portfolio, said of the return.

The 2026 credits run deep: adam&eve\TBWA under ECDs Matt Gay with creatives Beck Dunn and Freddie Mickshik; Rogue Films in production; Untold Studios on VFX; Stitch on the edit; 750mph on audio; and King Henry on the end frame.

Twix's platform 'Two Is More Than One' is about pairs beating singles — merging two holidays into one season dramatizes the idea instead of just saying it.

A hybrid season lets one campaign and one media buy span two retail peaks, Halloween and Christmas, with a single mascot.

The comedy is engineered in the script: the teenager's deadpan list of responses plays the monster for laughs, keeping the horror safely cartoonish.

A brand platform about 'two is more than one' can be dramatized structurally — by fusing two holidays and two audience moods into one mascot and one season.

The campaign entered its second year in October 2026, with the film and credits published by Brazil's Clube de Criação ahead of its 2026 festival. Mars has not disclosed commercial results for either year of Hallowmas.