Duncan's breakout role (then credited as "Neil Duncan") was as Peter Livingstone, side-kick to
Mark McManus's Taggart in Scottish television's
eponymous detective series. Since the early 2000s, he has been doing voiceover work, including films such as
Batman Unlimited: Animal Instincts and video games such as
Warlords Battlecry,
Legacy of Kain: Defiance,
X-Men Legends II: Rise of Apocalypse,
Tomb Raider: Legend,
Tomb Raider: Anniversary,
Final Fantasy XIV,
Mass Effect,
Infinity Blade II,
Infinity Blade III,
Metal Gear Rising: Revengeance and
Middle-earth: Shadow of Mordor, as well as animated television series:
Alfred Pennyworth in
The Batman and
Adrian Toomes in ''
Marvel's Spider-Man''. His most notable television guest appearances include episodes of
Tracey Takes On...,
Buffy the Vampire Slayer,
Charmed,
Angel and
Leverage. Duncan was one of 400 actors considered for the lead role in the international hit series
Highlander: The Series but lost out to
Adrian Paul. He later guest-starred in the fifth season's episode "
Dramatic License" as immortal Terence Coventry. In 2011, Duncan appeared in David Fincher's
The Girl with the Dragon Tattoo. Duncan has also provided his voice for
How to Train Your Dragon 2 and acted in the
HBO series
Westworld. and for the role of "President" in Death Stranding 2: On The Beach''. == Personal life ==