Mayor Len Blustergas holds the elected position of mayor in Cappy Town, Dream Land. He lives outside the town with his wife Hana, their three grandsons, and a large flock of sheep managed by a shepherd on their property. His authority is significantly limited by the dictatorial King Dedede, who often imposes unfair laws for selfish reasons. Despite this, Cappy Town's residents respect Mayor Len for consistently striving to represent their interests.

Physically, Mayor Len is a well-dressed Cappy. His typical attire includes a white shirt, green bowtie, brown tuxedo, and a tan-wrapped top hat. He sports a gray mustache, absent in his younger years as seen in his wedding portrait. His body structure matches the standard Cappy design of the series.

Personality-wise, Mayor Len is eccentric and verbose, often described as a windbag who speaks at length. He displays considerable energy despite his age. While his mayoral duties grant him limited direct involvement in daily town affairs, he frequently acts as the Cappy representative when bringing complaints or grievances to King Dedede. He is considered one of the wealthiest Cappies, owning the only personal transportation vehicle in Cappy Town besides King Dedede's. A recurring hobby sees him carrying an old-fashioned film camera for photography.

His background includes being married to Hana for over forty years. He once participated in racing, a fact revealed during the Kirby Derby. He also uses dentures. Mayor Len ranks as the second-most powerful leader in Dream Land, subordinate only to King Dedede. Documented appearances do not expand beyond these core elements.