John Ralston

Acting·October 9, 1964 — 61 years old·Miramichi, New Brunswick, Canada

John Ralston (born October 9th, 1964) is a Canadian actor. He is most known for his roles are George Venturi on Life with Derek and Mr. Avenir on Strange Days at Blake Holsey High.

Known For

Ready or Not

Ginny & Georgia

On the Basis of Sex

Infinity Pool

Exit Wounds

Nikita

Haven

Stockholm

Crisis

Our House

Ascension

Bitten

Filmography · 79

—CounsellingClark 2025OvercompensatingTVProfessor Cleary 2024Law & Order Toronto: Criminal IntentTVChristopher Parsons 2023MotherlandWerner 2023Life with LucaGeorge Venturi 2023Infinity PoolDr. Modan 2021The Expanse: One ShipTVMCRN Admiral 2021Joe PickettTVDerek Longbrake 2021Die in a GunfightWilliam Rathcart 2021CrisisFDA Chairman 2021Ginny & GeorgiaTVWhit Randolph 2021Two for the WinTom O'Neill 2020Nadia, ButterflyGreg Dale 2020TaintedGregor 2020TransplantTVMr. Chandler 2020Zoey's Extraordinary PlaylistTVPaul 2019May Your Dominion ExpandMacGregor 2019Ready or NotStevens 2019StockholmDetective Jakobsson 2019Radio SilenceStuart Wells 2019Red WineReuben 2018On the Basis of SexTom Miller 2018Our HouseRichard 2018Mary Goes RoundWalter "Walt" Jackson 2017The Curse of Buckout RoadJohn Buckhout 2017Frankie Drake MysteriesTVDonald Adams 2016Sadie's Last Days on EarthBurt 2016Two Lovers and a BearLucy's Father 2016Private EyesTVJoel Coleman 2016The StepchildBill 2015Degrassi: Don't Look BackMr. Miles Hollingsworth II 2015Pound of FleshGeorge · Associate Producer 2014AscensionTVRobert Bryce 2014Client SeductionDetective Mike 2014The CallingAndrew Pederson 2014BittenTVSasha Antonov 2013PlayedTVThomas Novak 2013The InformantJohn Wexford 2012Good GodTVDanny McClure 2011Raw OpiumSelf - Narrator 2010NikitaTVDr. Joseph Mars 2010HavenTVWalter 2010Vacation with DerekGeorge Venturi 2010The CultWilliam Rivers 2010The CultTVWilliam Rivers 2010Living in Your CarTV 2009The ListenerTVMitch Deerfoot 2008South of the MoonMatt Hawkins 2008A Near Death ExperienceDr. William Shaw 2007Flash GordonTVMing the Merciless 2007KawOskar 2007Friends and HeroesTVLucius 2007Demons from Her PastQuentin Baxter 2006Angela's EyesTV 2006EarthstormDr. Garth Bender 2006Strange Days: ConclusionsJack Avenir 2005Life with DerekTVGeorge Venturi 2004Irish EyesPaul Keaton 2004Brave New GirlJason Sloan 2004This Is WonderlandTVLen Taft 2004The Cradle Will FallRichard Carroll 2003Defending Our Kids: The Julie Posey StorySteve 42 2002Strange Days at Blake Holsey HighTV 2002Power and BeautyFrank Sinatra 2002Her Best Friend's HusbandElliott 2001DegrassiTVMr. Miles Hollingsworth II 2001Mutant XTVCarl 2001KhaledMr. Borquin 2001Exit WoundsMulcahy's Date 2001SanctuaryDavid Delaney 2001Blue MurderTV 2000Turn It UpMr. White 2000The Deadly Look of LoveD.A. Barry Fenley 1999The CityTVJack Berg 1999Sam's Army 1998Highlander: The RavenTVRiley Del Deegan 1998IceAirport Gunman 1997Earth: Final ConflictTVDr. Raymond Fuchs / Stephen 1996Psi Factor: Chronicles of the ParanormalTV