Kate McKinnon (b. 1984) is an American actress and comedian, best known for her sketch comedy work as a cast member on Saturday Night Live. She has also done voice work on Family Guy, The Simpsons, and The Magic School Bus Rides Again, and appeared in Sisters (with Tina Fey and Amy Poehler), and played Dr. Jillian Holtzmann in Ghostbusters (2016).
In 2014, McKinnon appeared alongside Telly Monster in "W-ORD Channel 7 News With John Oliver & Cookie Monster," a video distributed by Mashable in support of Sesame Workshop's "Words Are Here, There, and Everywhere" initiative.
In February 2017, McKinnon recorded an appearance for the 48th season of Sesame Street, playing Mother Goose in Episode 4803. While on set, she recorded a "Sesame Street Memory" video for the 50th anniversary celebration of Sesame Street with Elmo.