- Ep: 53
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- Ep: 54
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- Ep: 55
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- Ep: 56
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- Ep: 57
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- Ep: 58
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- Ep: 59
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- Ep: 60
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- Ep: 61
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- Ep: 62
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- Ep: 63
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- Ep: 64
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- Ep: 65
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| Colin Morgan .............................. Merlin |
| Angel Coulby ................................ Gwen |
| Bradley James .............. King Arthur Pendragon |
| Katie McGrath ............................ Morgana |
| Richard Wilson ............................. Gaius |
| John Hurt .......... The Voice of the Great Dragon |
