The Last Days of Ptolemy Grey Guest cast, played by Denise Burse Episode 1x01: Reggie (Mar 11, 2022) Episode 1x02: Robyn (Mar 11, 2022) Episode 1x03: Sensia (Mar 18, 2022) Episode 1x05: Nina (Apr 1, 2022) Episode 1x06: Ptolemy (Apr 8, 2022)