Marc Evan Jackson, born on August 21, 1970, is an American comedian and actor who has carved a distinctive niche in television comedy, largely through his recurring collaborations with producer Michael Schur. Jackson is best known for his supporting roles in a trio of beloved sitcoms, where he brought a unique blend of deadpan authority and comedic warmth to characters that became fan favorites. His most notable television appearances include playing Captain Raymond Holt's husband Kevin Cozner in Brooklyn Nine-Nine, the hapless and sycophantic Trevor Nelsson in Parks and Recreation, and the enigmatic and philosophical demon Shawn in The Good Place. He also appeared in a smaller role in Schur's later series A Man on the Inside.

Jackson’s career extends well beyond the small screen, showcasing his versatility as a performer. He voiced the character Bradford Buzzard in the Disney animated series DuckTales and has appeared in several major motion pictures, including playing Dr. Murphy in 22 Jump Street and Steve Woodward in Kong: Skull Island. He is also a celebrated figure in the world of live audio theater and comedy, best known for his long-running role as the heroic space ranger Sparks Nevada in the popular live show and podcast The Thrilling Adventure Hour, a performance that earned him a devoted cult following. His deep, resonant voice and impeccable comedic timing have made him a sought-after performer in both animation and live-action projects.

Before his breakout television roles, Jackson honed his craft as a stand-up comedian and improviser, becoming a member of the famed comedy troupe The Groundlings in Los Angeles. This rigorous training in character work and ensemble comedy laid the foundation for his later success, allowing him to create memorable, fully-realized characters even in limited screen time. His ability to play characters who are both intimidating and hilarious, often serving as the straight man in absurd situations, has become his signature. As a frequent collaborator of Michael Schur, Jackson has become a familiar and beloved face to audiences of modern American comedy, consistently delivering performances that are both nuanced and effortlessly funny. He continues to work steadily in television, film, and voice acting, maintaining his status as a versatile and respected character actor.