King Arthur Pendragon - Avalon Part 3, Pendragon -- every story in Pen 1 -- Meet the Minions, Signs and Portents, Beginning Again, The Yorkshire Adventure, A Call to Arms, My Lady Fair, Triangles, "The Hawk and The Crow", Ploys, In The Blood, The Drowned City, Night of the Weird, Darkest Hour parts 1 and 2, Aftermath part 2, Seeds of Change. -- all season 3 eps except for "The Reluctant Thief" and "My Angel Brianna" --
Emrys - Merlin - Pen 1.19, "Quest's End" is the first time we see him in present day, but a number of stories tell his tale in flashbacks. G/P Season 2 - Meet the Minions, Signs and Portents, Beginning Again, The Yorkshire Adventure, A Call to Arms, My Lady Fair, Triangles, "The Hawk and The Crow", Ploys, In The Blood, The Drowned City, Night of the Weird, Darkest Hour parts 1 and 2, Aftermath parts 1 and 2, Seeds of Change. -- all season 3 eps except for "The Reluctant Thief" and "My Angel Brianna" --
Griff - MIA, Pendragon -- every story in Pen 1 -- Meet the Minions, Signs and Portents, Beginning Again, The Yorkshire Adventure, My Lady Fair, Triangles, "The Hawk and The Crow", Ploys, In The Blood, The Drowned City, The Drowned City, Night of the Weird, Darkest Hour parts 1 and 2, Seeds of Change. -- Expatriot, The Reluctant Thief, "On Holiday" parts 1 and 2, "Iris, Lily, and Rose" parts 1 and 2, "The Once and Future King" parts 1 and 2 --
Rory Dugan - The Hound of Ulster, Pen 1.18 "The Tain". This story is also the first time that Rory's deceased mother Meghan is mentioned. -- "A Call to Arms", Triangles, Ploys, In The Blood, The Drowned City, Night of the Weird, "The Darkest Hour" parts 1 and 2 -- Expatriot, The Reluctant Thief, My Angel Brianna, "On Holiday" parts 1 and 2, "Iris, Lily, and Rose" parts 1 and 2, Dark Passions, "TOAFK" parts 1 and 2 --
Mr. Pat Dugan, Rory's father - The Hound of Ulster - Pen 1.18 "The Tain".
Dulcinea - The Yorkshire Adventure, Ploys, referenced in "In The Blood", in "The Drowned City", Night of the Weird, , "The Darkest Hour" parts 1 and 2, Seeds of Change. -- Expatriot, My Angel Brianna, "On Holiday" parts 1 and 2, referenced in "Iris, Lily, and Rose" part 1 and is in part 2, Dark Passions, Ripper, "TOAFK" parts 1 and 2 --
Leba - "The Tain" -- "Begining Again", mentioned in "My Lady Fair" , Triangles, "The Hawk and The Crow", Ploys, In The Blood, The Drowned City, Night of the Weird, , "The Darkest Hour" parts 1 and 2, Seeds of Change. -- Expatriot, The Reluctant Thief, My Angel Brianna, "Iris, Lily, and Rose" parts 1 and 2, Dark Passions, Ripper, "TOAFK" parts 1 and 2 --
Colin Marter - Season 1: "Into the Woods", "Dragon's Wrath" -- G/P Season 2: Meet the Minions, Signs and Portents, My Lady Fair, "The Hawk and The Crow", Ploys, In The Blood, Night of the Weird, Darkest Hour part 1, Seeds of Change. -- Expatriot, The Reluctant Thief, "On Holiday" part 1, "The Once and Future King" parts 1 and 2 --
Kevin Mitson - G/P Season 2: Meet the Minions, The Yorkshire Adventure, Triangles, Ploys, Night of the Weird, Seeds of Change. -- Expatriot, The Reluctant Thief, "Iris, Lily, and Rose" part 2, "The Once and Future King" part 1 --
Mary Sefton - Season 3: Curse of Rivencroft, The Sleepers, Giants in the Earth, "On Holiday" parts 1 and 2, "Iris, Lily, and Rose" parts 1 and 2, Dark Passions, "The Once and Future King" parts 1 and 2 --