Sean Carl Roland Pertwee (born 4 June 1964) is an English actor, narrator and producer.

His credits include Chancer (1990), Leon the Pig Farmer (1992), Cadfael (1994), Bodyguards (1997), Event Horizon (1997), Stiff Upper Lips (1998), Soldier (1998), Cleopatra (1999), Love, Honour and Obey (2000), Dog Soldiers (2002), Julius Caesar (2003), Ancient Rome–The Rise And Fall of an Empire: Caesar (2006), Doomsday (2008), Honest (2008), Devil's Playground (2010), Four (2011), Wild Bill (2011), Elementary (2013–2014), Howl (2015), Gotham (2014-2019), Agatha Christie's The Pale Horse (2020), You (2023), Silent Witness (2024), and The Night Caller (2024).

[3] He appeared in Agatha Christie's Hercule Poirot – The King of Clubs alongside David Suchet (12 March 1989).

In 1997, he starred alongside Laurence Fishburne, Sam Neill, Joely Richardson, and Jason Isaacs in the space based science fiction horror film Event Horizon (1997).

He co-owned the Natural Nylon film production company along with Sadie Frost, Jude Law, Jonny Lee Miller, and Ewan McGregor.

Pertwee portrays Alfred Pennyworth, an ex-special forces soldier from London who works as the Wayne family's loyal butler.

[12] In 2024, he played Detective Inspector John Flynn in Silent Witness in the episodes "Death by a Thousand Hits" Part 1 and 2.