Tony Slattery's final post as Whose Line Is It Anyway? star dies

Whose Line Is It Anyway?: Penn & Teller

'Whose Line Is It Anyway?' Star Tony Slattery Dead at 65

Tony Slattery's heartfelt message to fans that he shared weeks before his death

Tony Slattery, mercurial comedian and actor whose improvisations lit up Whose Line Is It Anyway?

Actor John Slattery on the legacy of "Mad Men"

Tony Slattery's last ever stand up comedy routine before death

Heartbreaking last clip shows BBC comedian on Xmas Day weeks before he died