
Biography
Katie Elizabeth Walder is the youngest of 5 children - 2 brothers and two sisters. She started acting at a young age in musicals and plays in school, and did some print work as a young teen in such magazines as Teen and YM. She went on to study theatre in college, and upon moving to NYC after graduation, started working professionally in theatre with notable Broadway directors such as Michael Greif (original director for "Rent"), Keith Reddin and Daniel Aukin. Katie soon moved to Los Angeles and quickly landed a recurring role on the 4th Season of Gilmore Girls (2000) as "Janet Billings", the quirky/tough/athletic college roommate of Rory. She has been working steadily in film & TV ever since. Along with Gilmore Girls, Walder is best known for her recurring roles on How I Met Your Mother as Shannon and Mad Men as Sherry. She has appeared in over 40 television shows, including New Girl, Franklin & Bash, Fairly Legal, The Good Wife, Supernatural, and Rules of Engagement. In 2007, she played Tori (Zach's girlfriend) in the award-winning independent film "Shelter." In 2014, she starred in the horror film "Come Back to Me."
Filmography29 titles

The Mentalist

Grimm

Supernatural

Station 19

Scorpion

Mad Men

How I Met Your Mother

S.W.A.T.

Gilmore Girls

Law & Order: Special Victims Unit

How to Get Away with Murder

Cold Case

Shelter

Hustle

CSI: Miami

The Good Wife

New Girl

Lethal Weapon

Franklin & Bash

Saving Grace

Without a Trace

Rules of Engagement

The New Adventures of Old Christine

Always and Forever

Cupid

It Happened in L.A.

A Christmas to Treasure

30 Nights

Extreme Movie