Grump (played by Antti Litja) is a protagonist in The Grump.
Cranky elderly Finnish man navigating life's annoyances with stubborn humor. Wife (played by Petra Frey) is a protagonist in The Grump.
Deceased spouse whose memory deeply influences the Grump's daily reflections. Daughter-in-Law (played by Mari Perankoski) appears in The Grump.
Patient relative managing family dynamics and household care for the Grump. Son (played by Iikka Forss) appears in The Grump.
Middle-aged man balancing his father's stubbornness with modern responsibilities. Sergei (played by Viktor Drevitski) appears in The Grump.
Foreign worker adding cultural contrast and linguistic humor to rural life. Tarasenko (played by Bruno Puolakainen) appears in The Grump.
Associate of Ljudmila involved in local community dynamics. Ljudmila (played by Alina Tomnikov) appears in The Grump.
Russian-speaking character adding linguistic and cultural humor. Taxi Driver (played by Timo Lavikainen) appears in The Grump.
Driver transporting the Grump, witnessing his grumpy outbursts firsthand.