Severn Teakle Darden Jr. (November 9, 1929 – May 27, 1995) was an American comedian and actor, and a founding member of The Second City Chicago-based comedy troupe as well as its predecessor, the Compass Players. He is known from his film appearances for playing the human leader Kolp in the fourth and fifth Planet of the Apes films. His live comedy improv skit under the character of "Walther von der Vogelweide" was influential with two generations of comic performers. Darden’s offbeat and intellectual sense of humor was a major element in the style of The Second City at that time, and is evident throughout his work. Carroll described him as a combination of surrealistic New Orleans and tough, caustic "Chicago Style" comedy. Sills went on to found The Second City in 1959 and brought in many of the comedians from Compass Players, including Darden. He participated with the experimental artists collective "The TeePee Video Space Troupe" (aka "The TP Video Space Troupe") organized by filmmaker Shirley Clarke.
Darden appeared in various movies and television series. A signature performance is in the 1967 comedy The President's Analyst; there he plays a major role as Kropotkin, a Soviet agent with a laid-back persona, much like Darden's own. He played a junk dealer in another early film, Luv (1967), based on the play of the same title by Murray Schisgal, which also starred Jack Lemmon, Peter Falk, Elaine May, and Nina Wayne. He also played the cold-hearted Kolp in Conquest of the Planet of the Apes and Battle for the Planet of the Apes.