| Championship | 15/09/21 | Swansea City | - | Millwall FC | 0:0 | ||||
| Championship | 05/11/22 | Millwall FC | - | Hull City | 0:0 | ||||
| Championship | 30/09/23 | Millwall FC | - | Swansea City | 0:3 | ||||
| Championship | 27/01/24 | Millwall FC | - | Preston North End | 1:1 | ||||
| Championship | 01/02/25 | Millwall FC | - | Queens Park Rangers | 2:1 |
| Billy James Mitchell | |
| Born: | 07.04.2001 |
| Place of birth: |
Orpington, London, 
England |
| Nationality: |
England
|
| Height: | 178 cm |
| Weight: | 71 kg |
| Position(s): | Defensive Midfielder Central Midfielder |
| Foot: | right |
