Jonathan Ryan is an Irish actor.

Ryan has also played Gerry Adams and Proinsias De Rossa on screen.

As a pupil at C.B.C. Monkstown in 1963, Jonathan played rhythm guitar and shared vocals in the Rhythm & Blues band ROOTZGROOP, with Robbie Brennan, Rodney Williams, Dave McAnaney and Paul Brady.^[1]

Ryan's acting career began while still a full-time student, making his debut playing ‘Dan’ opposite Lynn Redgrave and Dan O'Herlihy in A Better Place at Dublin's Gate Theatre in 1972. He turned full-time in 1978 and since then has worked extensively on stage, in TV, film and radio and has been one of Ireland's busiest voiceover artists for forty-two years.^[2] He has recorded TV and radio commercials for clients worldwide, winning several awards for his work in this field.^[3]

• Stokes in The Outsider (1980), starring Sterling Hayden
• The priest in Bob Quinn's Budawanny (1987)
• Gibson in Taffin (1988), starring Pierce Brosnan
• Jimmy Reardon in Patriot Games (1992), starring Harrison Ford
• Scottish Prison Governor in In the Name of the Father (1993), starring Daniel Day-Lewis
• Broken Harvest (1994) as Narrator
• Goldsmith in Moll Flanders (1996), starring Morgan Freeman and Robin Wright Penn
• Hamish MacDonald in Kidnapped, starring Armand Assante
• Gerry Adams in Omagh (2004), starring Gerry McSorley
• The Major in John Vaughan's Valour (2006), starring Dave Duffy
• The Teacher in John Vaughan's My Dad (2007), starring Michael Liebmann and Jack Ryan
• The Father in The Portrait (2007), with Catherine Steadman
• Proinsias De Rossa in Brendan Smyth: Betrayal of Trust (TV movie)
• Sergeant Kenefick in Grabbers 2012 (post-production), starring Richard Coyle
• Howard Wakefield in Chasing Leprechauns 2012 (TV movie) (post-production)

• Bosco Voice of Bosco (in the pilot series only) and Himself as presenter in the main series (RTÉ)
• 'Schooner' Cooney in Bracken (RTÉ)
• Doctor Jerome Hickey in The Irish RM (9 episodes, 1984–1985) Channel 4/RTÉ
• Randall McDonnell in The Year of the French (RTÉ)
• Heinz Fromme in Caught in a Free State (RTÉ)
• Sheridan in Summer Lightning (Channel 4)
• Against All Odds (BBC)
• 27 characters in Twink – RTÉ
• Tom Crowe in The Templewood Murder Mystery – RTÉ
• James Flanigan in Die glückliche Familie for Süddeutscher Rundfunk (1987)
• Hochzeitsreisen 'Verliebt, Verlobt, Verheiratet' for Norddeutscher Rundfunk
• Plunkett in Proof II (RTÉ)
• The French Ambassador in Seasons 1 – 3 of The Tudors (Showtime/BBC)
• Greg Hartnett in The Clinic (Season 5) RTÉ/Parallel Films
• Bill Taylor in Fair City (RTÉ)
• Iron Islands Priest in Game of Thrones (HBO)
• Nobleman in Vikings (2013 TV series) (History Channel)
• Baron Broadmore in Into The Badlands (AMC)

• Jacob Milne in Night and Day – at the Abbey Theatre – Dublin Theatre Festival 1981
• Bob in The Silver Dollar Boys – at the Peacock and Abbey Theatres
• Guildenstern in Michael Bogdanov's production of Hamlet – at the Abbey Theatre
• Archer in The Beaux Stratagem – at the Abbey Theatre
• Miles in The Death and Resurrection of Mister Roche – at the Abbey Theatre
• Dan in A Better Place – at the Gate Theatre
• The Gentleman Caller in The Glass Menagerie – at the Gate Theatre
• Giovanni in Innocence (The Life of Caravaggio) – at the Gate Theatre
• Aslak and Balloon in Peer Gynt – at the Gate Theatre
• Tigellinus in Salomé – at the Gate Theatre (Toured to the Edinburgh Festival and Spoleto Festival USA in Charleston, South Carolina)
• Bill Sikes in the Noel Pearson/Cameron Mackintosh production of Oliver! – at the Olympia Theatre
• Abanazar in Aladdin – at the Olympia Theatre
• Gaston Laschailles in Gigi! – at the Gaiety Theatre
• Oscar Lindquist in Sweet Charity – at the Gaiety Theatre
• Mortimer Brewster in Arsenic and Old Lace – at the Gaiety Theatre – Dublin Theatre Festival 1985
• Bogart in Woody Allen's Play it again, Sam – at the Eblana Theatre
• Marlowe in Paddy Meegan's Kiss n'Tell – at the Andrew's Lane Theatre
• Liam in Liam Liar – at the Pavilion and Oscar Theatres
• Joe Fell in I Do Not Like Thee, Doctor Fell – at the Oscar Theatre
• Mister Toad in Toad of Toad Hall – at the Oscar Theatre
• Paul Sheldon in Stephen King's Misery, with Helen Norton – on Irish national tour.
• We Do It for Love, The Colleen Bawn, The Cuchulainn Cycle, The Evangelist, A Midsummer Night's Dream and Grease – all at the Lyric Theatre Belfast.
• Benvolio in Romeo and Juliet, with The Dublin Theatre Festival production on tour to the City Theatre Hong Kong.
• Performed The Durkan Suite, accompanied by composer Bill Whelan and the London Chamber Orchestra.
• Adolf in Roger Doyle's Adolf Gebler Clarinettist, with the RTÉ Concert Orchestra – both at the National Concert Hall Dublin

The Irish International Advertising Awards Festival: Premier (Individual) Craft Award – Individual Craft Award.

The Institute of Creative Advertising and Design (ICAD) Awards: Individual Craft Award for Best Performance on Radio or TV – Individual Award for Exceptional Merit – Individual Craft Award.