[5] In 1979, Renders co-founded Nightwood Theatre with Cynthia Grant, Mary Vingoe, and Maureen White.
[6] While working with Nightwood, Renders acted in such productions as The True Story of Ida Johnson (1979), Glaze Tempera (1980), Flashbacks of Tomorrow (Memorias del Mañana) (1981), Mass/Age (1982), Smoke Damage: A story of the witch hunts (1983) and The Edge of the Earth is Too Near, Violette Leduc (1986 - as Violette).
Other company members were Richard Rose, Thom Sokoloski, Maggie Huculak, Stewart Arnott, Tanja Jacobs, Bruce Vavrina and Mark Christmann.
[14][15] She also managed the TYA troupe Barefoot Players, and was a faculty member of the Queen's University Dan School of Drama and Music.
[5][17] Her one-woman show Motherhood, Madness and the Shape of the Universe was performed across Canada and Britain, and was adapted for CBC Radio; and her other one-woman show Waiting for Michelangelo opened at the Baby Grand Studio in the Grand Theatre Kingston in April 2009.
[3] Renders died on July 17, 2018, in Kingston, Ontario, at age 63 due to complications from cancer.
[25][26] The Storefront Fringe Festival installed "Kim's Couch" to honour Renders' contributions to theatre.