- Jace Norman as Henry Hart (Kid Danger)
- Cooper Barnes as Ray Manchester (Captain Man)
- Riele Downs as Charlotte Bolton
- Sean Ryan Fox as Jasper Dunlop
- Ella Anderson as Piper Hart
Episodes without airdate
These episodes have been taped with no known air date. The episodes have been approved to be on here by the founders of the wiki.
- Season 4 started production on April 3, 2017.
- Jace mentioned in an interview with Just Jared Jr that he wants to know a little bit more about Henry’s family.
- Henry Danger and Game Shakers are going to have a special crossover special this season. 
- This crossover will be the second crossover for both series and the second Dan Schneider universe crossover, after iParty with Victorious.
- If you count Game Shippers, this will be the third Dan Schneider universe crossover, after iParty with Victorious and Game Shippers.
- It is unknown if Maeve Tomalty (who plays Bianca) will return this season, after previously announcing she would not appear in the third season.