"Bad to Worse" is the sixth episode of Season 3 of Mr. Mercedes. It airs on October 15, 2019.
- Brendan Gleeson as Bill Hodges
- Justin Lupe as Holly Gibney
- Kelly Lynch as Deborah Hartsfield
- Jharrel Jerome as Jerome Robinson
- Scott Lawrence as Peter Dixon
- Robert Stanton as Anthony Frobisher
- Breeda Wool as Lou Linklatter
- Justine Lupe as Holly Gibney
- Mary-Louise Parker as Janey Patterson
- Holland Taylor as Ida Silver
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