Dayakka Littner is the former leader of Littner Village, abandoning his post, when most of Littner joined Team Dai-Gurren. His Gunmen is the Dayakkaiser, but after the seizure of Dai-Gunzan, he acted as the captain of Dai-Gurren during battles, while Kiyoh piloted the Dayakkaiser in his stead. After the timeskip, we discover that Dayakka is appointed the Minister of Food Affairs for Kamina City, and he and Kiyoh have married and expecting a child. With the threat of the Anti-Spirals, Dayakka resigns his post and returns to his duties in Team Dai-Gurren.

(Source: Wikipedia)