Hollywood actor and comedian Martin Short suffered a heartbreaking personal loss earlier this year when his daughter, Katherine Short, died by suicide in February 2026 at the age of 42. Now, for the first time since the devastating tragedy, the Only Murders in the Building actor has opened up about his daughter’s long struggle with mental health while promoting his upcoming documentary, Marty: Life Is Short.

Martin Short on his daughter's death

During an emotional appearance on CBS News Sunday Morning, Martin spoke candidly about the devastating loss of his daughter. The actor drew parallels between Katherine’s mental health struggles and the illness that claimed the life of his wife, Nancy Dolman, in 2010.