The BAU takes charge of a hostage situation at a Washington, D.C. law firm where Matt Simmons' (Daniel Henney) wife, Kristy (Kelly Frye), works, on an all-new episode airing Wednesday, April 4 at 10 p.m. ET/PT on CBS.
The 'Criminal Minds' star opened up about supporting her former co-hosts while speaking with ET at the premiere of 'Ready Player One,' which is in theaters March 29.