New characters only
| Gilderoy
Lockhart 吉德羅•洛哈 |
----- | Kenneth Branagh |
| Tom Riddle 湯姆•瑞斗 |
----- | Christian Coulson |
| Arthur Weasley
阿瑟•衛斯理 |
----- | Mark Williams |
| Lucius Malfoy 魯休思•馬份 |
----- | Jason Issacs |
| Moaning Myrtle
愛哭鬼麥朵 |
----- | Shirley Henderson |
| Madam Pomfrey 龐芮夫人 |
----- | Gemma Jones |
| Professor
Sprout 芽菜夫人 |
----- | Miriam Margolyes |
| Professor
Dippet 狄劈教授 |
----- | Alfred Burke |
| Madame Pince 平斯夫人 |
----- | Sally Mortemore |
| Penelope
Clearwater 潘妮•清水 |
----- | Gemma Paley |
| Ginny Weasley 金妮．衛斯理 |
----- | Bonnie Wright |
| Aragog [voice]
阿辣哥 |
----- | Julian Glover |
| Colin Creevey 柯林•克利維 |
----- | Hugh Mitchell |
| Justin
Finch-Fletchley 賈斯汀•方列里 |
----- | Edward Randell |
| Dobby(voice) 多比 |
----- | Toby Jones |