Prior to his casting as O'Malley, Knight enjoyed guest-starring roles on Law & Order, Sesame Street and CSI.
The headline Gilmore Girl Admitted to ER refered to Bleidel's guest-starring role on the long-running series ER's series finale on April, 2009.
In April 2009 the actress nabbed a guest-starring role on the award-winning CBS' comedy How I Met Your Mother.
One of the really great things about Stuart and I guest-starring this summer is getting Jon some press coverage because some of our single network fans may not know that he's over here and what a great show that ATWT is.