Known for her offbeat film and television performances, Catherine O'Hara established herself as a talented comedic actor who could ably handle dramatic roles as well. The Canadian actress eschewed college in favor of Toronto's Second City improvisational comedy troupe where she quickly replaced Gilda Radner after the latter jumped ship to "Saturday Night Live" (NBC, 1975- ). O'Hara more than filled Radner's shoes, stealing scenes from such accomplished comedians as Martin Short, Eugene Levy and John Candy. Hot off of "SCTV" fame, she began a long and steady career in film with her debut in the Martin Scorsese feature, "After Hours" (1985), followed by a turn in the Mike Nichols feature, "Heartburn" (1986). In 1987 she played a supporting role in the horror-comedy feature, "Beetlejuice," and three years later she appeared in the blockbuster feature comedy, "Home Alone" (1990). She would later join the cast of Christopher Guest's ensemble feature comedy, "Waiting for Guffman" (1996), beginning an artistic relationship that would result in several more films with the Guest troupe of actors, including many of her former "SCTV" castmates. Though she had once received her big chance as understudy to the legendary Radner, O'Hara's undeniable comedic gifts and a talent for picking consistently solid film and TV projects ensured her career was no joke some 30 years on.