Karl Jonson – Birmingem Siti Universitetining (Birmingham City University) faxriy doktorlik darajasiga ega. Aktyorning eng mashhur roli – Derek Jarman (Derek Jarman) filmi "Vittgenstein" ("Wittgenstein", 1993) filmidagi bosh rol.
Karl Jonson, shuningdek, "Rim" ("Rome", Katon-kichik roli) teleserialida va "Lark Rayz qarshi Kendlford" yoki "Chut svet – v Kendlford" ("Lark Rise to Candleford", Tvister roli) kiyim-kechakli ko'p seriyali loyihasida ishtirok etgan.
Aktyorning tanlangan filmografiyasi: "To'rt oxirgi qo'shiq" ("Four Last Songs", 2007), "Tipa katta o'yinchi" ("Hot Fuzz", 2007), "Illuzionist" ("The Illusionist", 2006), "Alp siri" ("Heidi", 2005), "Nopoch" ("Pure", 2002), "Tomorrow La Scala!" (2002), "Sevgi – bu shayton" ("Love Is the Devil: Study for a Portrait of Francis Bacon", 1998), "Vittgenstein" ("Wittgenstein", 1993), "Ko'zlarimni yop" ("Close My Eyes", 1991), "Prick Up Your Ears", "Yubiley" ("Jubilee", 1978), "Avenging Force", "Bura" ("The Tempest", 1979), "The Tent", "Sehrli do'kon" ("The Magic Shop", 1982).
Karl Jonson, shuningdek, "Kichik orol" ("Small Island", 2009), "Merlin" ("Merlin", serial), "Urushgacha 10 kun" ("10 Days to War", serial, 2008), "Ladies and Gentlemen" (2007), "Toni Bleyr sudi" ("The Trial of Tony Blair", 2007), "Qadimgi Rim: Imperiyaning ko'tarilishi va qulashi" ("Ancient Rome: The Rise and fall of an Empire", serial, 2006), "Nostradamus" ("Nostradamus", 2006), "Chatterley ishi" ("The Chatterley Affair", 2006), "Elizabeth Devid: Retseptlar hayoti" ("Elizabeth David: A Life in Recipes", 2006), "Rim" ("Rome", serial, 2005-2007), "When I’m Sixty-Four" (2004), "Yarmarka behuda" ("Vanity Fair", serial, 1998), "Chisto ingliz qotilliklari" ("Midsomer Murders", serial), "Puaro" ("Poirot", serial) kabi televizion loyihalarda suratga olingan.
