As she leaves for art school in New York, Skye gets a phone call from Alex. Skye hasn't heard from Alex in two years, but before she can move on with her life she needs to tie up some loose ends. Unfortunately, someone else has the same idea, and they're stalking and slashing their way through Alex's Sweet 16 party at her grandparents' isolated estate.
Unfortunately the movie My Super Psycho Sweet 16: Part 3 is not yet available on HBO Max.
| Directing | Jacob Gentry | Director |
| Production | Chris Linn | Executive Producer |
| Sound | Michael P. Clark | Sound Mixer |
| Art | Jeffrey Pratt Gordon | Production Design |
| Costume & Make-Up | Lay'Na Anderson | Makeup Artist |
| Costume & Make-Up | Elizabeth Robinson | Hairstylist |
| Costume & Make-Up | Caroline Miller | Costume Design |
| Production | Jed Elinoff | Producer |
| Production | Scott Thomas | Producer |
| Production | Tammara Billik | Casting |
| Production | Jason L. Wood | Casting |
| Art | Jeff Stacy | Set Decoration |
| Production | Alexander Motlagh | Executive Producer |
| Costume & Make-Up | Keitric Starks | Makeup Artist |
| Production | Joshua Butler | Executive Producer |
| Production | Chad Cole | Executive Producer |
| Sound | Marcus Zalewski | Sound Re-Recording Mixer |
| Sound | Juan Campos | Sound Re-Recording Mixer |
| Sound | Jason Chiodo | Sound Re-Recording Mixer |
| Production | Maggie Malina | Executive Producer |
| Production | Christopher White | Producer |
| Sound | Ben Lovett | Original Music Composer |
| Writing | Jed Elinoff | Writer |
| Writing | Scott Thomas | Writer |
| Crew | Eric Maddison | Cinematography |
| Editing | Matt Blundell | Editor |