Mary Scheer (born March 19, 1963) is an American actress, comedian, and producer. She is best known as one of the original cast members of the sketch comedy series MADtv and for playing Freddie's mother, Marissa Benson, on iCarly. She also played Alice the Zookeeper on The Penguins of Madagascar. She plays Gladys on Disney Channel's TV series, "Bunk'd".