Archie MacTavish was a P.R.o.B.e. agent.
Biography
Archie joined P.R.O.B.E. in Giles's second year (WC: Manchester) and they would work together closely for eight years. (AUDIO: What Happened in Manchester)
In 2011, Giles and Archie were sent to the Vault by Patsy, to investigate a duo of deaths. Meeting director Vanessa Hardcastle, she explained that the deaths were accidental. She brought them to head scientist Miles Werbiansky, who gaves Giles the inventory of the Vault, and upon seeing Cyberon, Vanessa and Miles took Giles and Archie to the low-risk storage, the area the Cyberon was kept, to find that a container had been damaged and Cyberon was loose. It inhabited the body of a young girl, Abigail, only to find that her being a werewolf caused mutations to the Cyberon. Archie distracted the Cyberon away from the group, and he later reunited with Giles. (PROSE: A Worthy Successor)
Archie and Giles tackled Banshees, Valsheeth and Cyberons. (WC: Manchester)
Dr Haggard sent Archie to Helsinki in search of a vampire nest. When he returned Archie and Giles fought Shed Scales. (PROSE: The Door We Forgot)
On 23 April 2018 Archie and Giles investigated at Poltergeist at Garry Nelson's house. (WC: Peckham Poltergeist)
Archie died in Manchester during a mission headed by Giles involving a dimensional tear that had formed in the city. While they interrupted the cult ritual, Archie was shot dead by one of the cultists and his corpse sucked into the tear. Giles spent a week in a grieving stupor aftwards. (WC: Manchester; AUDIO: What Happened in Manchester)
The Algea exploited Giles's feelings of guilt over his death. (PROSE: The Door We Forgot)
Unknown to PROBE, Archie MacTavish had not been completely dead when he was sucked into the portal and his functions were preserved in the space between dimensions. After drifting, he made contact with the Spiral Yssgaroth, the "reservoir of evil". Corrupted, he made a deal with the Yssgaroth entity, which helped him return to his universe to work on a ritual in time for the next Perihelion that would open a full gateway between the two universes. Returned to Earth as a vampire, he spent a year arranging attacks on PROBE as the only potential obstacle to his plans.
On the night of the ritual in 2021, Archie unleashed an army of corrupted creatures on London and revealed himself to Giles. The two former friends fought. Ultimately, PROBE successfully interrupted Archie's ritual. Archie was captured to stand trial and locked away in a high-security facility in Belmarsh. (PROSE: Preternatural Nights)