Kate Walsh & John Slattery Step Out to Support Sam Trammell at 'The Aftermath' Premiere!

Kate Walsh keeps it cute and casual as she hits the green carpet while attending the world premiere of The Aftermath held at The TCL Chinese 6 Theatres on Sunday (May 31) in Hollywood.

The 47-year-old actress was joined at the event by John Slattery and the stars of the flick Sam Trammell and his wife Missy Yager.

PHOTOS: Check out the latest pics of Kate Walsh

Earlier this month, Kate showed off her dress train while hitting the red carpet the 2015 Operation Smile Event alongside Maggie Q and Eli Manning.