The Scarlet Speedster teams up with the city's previous superhero, The Nightshade, in two adventures.
Unfortunately the movie The Flash III: Deadly Nightshade is not yet available on HBO Max.
| Writing | Howard Chaykin | Writer |
| Writing | John Francis Moore | Writer |
| Production | Danny Bilson | Executive Producer |
| Production | Paul De Meo | Executive Producer |
| Production | Gail Morgan Hickman | Producer |
| Production | Frank E. Jimenez | Associate Producer |
| Production | Michael Lacoe | Co-Producer |
| Production | April Webster | Casting |
| Art | Francis J. Pezza | Art Direction |
| Art | Robin Royce | Set Decoration |
| Costume & Make-Up | Bill Myer | Makeup Artist |
| Costume & Make-Up | Lana Sharpe | Hair Designer |
| Production | David L. Beanes | Unit Production Manager |
| Directing | Daniel R. Suhart | Assistant Director |
| Crew | Richard Dinieri | Property Master |
| Sound | James LaRue | Production Sound Mixer |
| Crew | William H. Schirmer | Special Effects Coordinator |
| Visual Effects | Robert D. Bailey | Visual Effects Supervisor |
| Visual Effects | Philip Barberio | Visual Effects Coordinator |
| Visual Effects | David Stipes | Visual Effects Supervisor |
| Sound | Shirley Walker | Music |
| Crew | Fred Lerner | Stunts |
| Costume & Make-Up | Perri Kimono | Costume Supervisor |
| Sound | Thomas Milano | Music Editor |
| Crew | Robert Benjamin | Transportation Captain |
| Directing | Gillian Murphy | Script Supervisor |
| Costume & Make-Up | Robert Short | Costume Design |
| Directing | Bruce Bilson | Director |
| Camera | Francis Kenny | Director of Photography |
| Editing | Greg Wong | Editor |
| Camera | Greg Gardiner | Director of Photography |
| Editing | Lawrence J. Gleason | Editor |
| Sound | Danny Elfman | Music |