Jikes. Velma Dinkley please report to the emergency room.

Usually when young actors star in blockbuster movies, they try to avoid returning to their television roots, but Linda Cardellini will probably be happy to have people recognize her from NBC's medical drama "ER" rather than from her work in the flatulence-heavy live action "Scooby-Doo" movies.

According to the Hollywood Reporter, Cardellini will join the cast of "ER" as a regular this fall, joining the show in its fifth episode. She'll play Nurse Samantha Taggart, a free-spirited single mother. Taggart may be a possible love interest for Goran Visnjic's Dr. Luka Kovac.

"We're pleased to have an actress of Linda's caliber joining the show," says "ER" executive producer John Wells.

Before she became well known for starring opposite a talking dog, Cardellini was a regular on the late lamented NBC cult dramedy "Freaks and Geeks." She has also appeared on several episodes of "Boy Meets World" and in the feature "Legally Blonde."