Explore every episode of the podcast Oliver Callan

Collie Ennis, Biodiversity Officer at TCD, told Oliver how bees are under grave threat because of the Asian hornet, a most destructive insect. He tells us why, and what can be done to halt the hornet horror.

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Oliver's monologue on a Wednesday

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Éanna Ní Lamhna is this week's visiting critic and we tried to tame wildlife expert by sending her to a meditation class, have a listen to this hilarious chat to see if it worked!

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We asked our listeners to get in touch again with their party pieces and they rose to the challenge!

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Catch up with Oliver on the weekend. Guests include Paralympic champion Ellen Keane on her busy retirement, writer Catherine Ryan Howard details her new book, Éanna Ní Lamha experiences meditating, Elaine Burke on Eurovision 2025 and a family fighting for scoliosis surgery.

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Selling Ice-cream in the sunshine in Clare and Galway

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Cork crime writing superstar Catherine Ryan Howard tells Oliver about her latest thriller, Burn After Reading, and chats about her previous one getting the TV treatment. The novel is called Burn After Reading and is out now.

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Oliver's monologue on a Thursday

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Mike Shyne told Oliver how he wants to show how clothes can both dramatically affect one’s mental health for the better. Log onto www.socktalk.ie to take a look.

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Oliver's monologue on a Wednesday

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14 year old Daniel Collins from Tralee was diagnosed with scoliosis in 2023. Since then his spine has gone from 22 to 95 degrees curvature. Oliver spoke to his mother Louise and sister Allanna who are fighting to get crucial surgery for Daniel.

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Oliver was joined by paralympian champion Ellen Keane this morning. They chatted about life after retirement from swimming, taking up golf and her preparations for the upcoming Women’s Mini-Marathon.

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Historian Jo Kerrigan tells Oliver how the mystery and folklore of Fairy Forts is still very much alive all around the island - roads curve around them, farmers won’t plough over them or cut the trees. Jo Kerrigan explains how these ancient mounds hold such power. Irish Fairy Forts: Portals to the Past is out now.

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Oliver's monologue on a Tuesday.

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Line of Duty actor Vicky McClure joined Oliver today and revealed her thoughts on a potential return of the hugely successful show and chatted about her gig, Day Fever, which is a night’s dancing in the middle of the day. Day Fever is at the Academy in Dublin on the 17th May.

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Oliver's monologue on a Monday

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WIth just one month to go to Eurovision, journalist Elaine Burke joined Oliver to review the entries to watch ahead of the big night!

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Visiting Critic Santis O'Garro challenges herself to a solo dinner without her phone or any distractions, and joins Oliver to discuss the experience.

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Rachel Forrest, a fifth-year college student and gender activist, speaks to Oliver about being inspired by the story of Mahbooba Faiz and the upcoming walk to raise awareness of gender apartheid.

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Oliver's monologue on a Friday.

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Catch up with Oliver on the weekend. Guests include Catherine Killalee, who's calling for tougher sentences for dangerous drivers, actor Peter Hanley, whose career was paused by sudden stage fright, neurologist Dr Brian Penney who is presenting a new documentary about addiction, and visiting critic Santis O'Garro, who braved solo fine dining.

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Catherine Killalee reflects on the life of her beloved son, Dylan Killalee Maher, and calls for tougher sentencing for dangerous driving causing death.

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Jim Murphy, of Murphy's Craft Butchers in Tullow, Co Carlow, talks to Oliver about his team's triumph in Paris's World Butcher Challenge, aka the Butcher Olympics.

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Oliver speaks to the three Parish Priests, Fr Martin O’ Hagan, Fr Eugene O’ Hagan and Fr David Delargy from the North hit the headlines in 2008 when they signed a mega record deal, going on to sell millions. They tell Oliver about being set to retire after performing together for 50 years.

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Oliver's monologue on a Wednesday.

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Pulitzer shortlisted journalist Carole Cadwalladr, best known for her scoop on the Facebook-Cambridge analytical scandal in 2018, joins the show to discuss privacy and big tech's influence ahead of her Granard Booktown festival appearance.

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Neuroscientist Dr Brian Pennie and his sister Anne join the show. Brian started his recovery from drug addiction back in 2013, and now he is set to present a new documentary 'Hooked,' which examines all kinds of addictions from gambling to smartphones.

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Performer and Entrepreneur Kourtney Pavlov gives Oliver a rare look into the circus world, and shares about growing up and travelling with her family circus.

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Oliver's monologue on a Tuesday

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Oliver's monologue on a Monday.

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Ballykissangel and Braveheart actor Peter Hanly told Oliver about how he suffered from extreme stage fright and could no longer remember his lines on stage, ending his 30-year stage acting career. He's back with a play, ‘What Are You Afraid Of’ and it’s running from August 5 to 12th. Tickets from Kilkennyarts.ie

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This week's visiting critic is former Mayo footballer and pundit, David Brady. We sent him to get his colours read and Oliver wanted to see if we can liberate him from the green and red!

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The broadcaster tells us about being turned away from EU border while bringing home new baby Grace

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Catch up with Oliver on the weekend. Guests include GAA player, Kevin Prinrose on coming out, broadcaster Darragh McCullough speaks about his decision and concerns in going down the surrogacy route, author Róisín Lanigan captures the horrors of Generation Rent and Malachy Robinson educates us on the double bass.

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Caroline Reidy, founder and manager of The HR Suite, talked to Oliver about the pros and cons of using AI in your job application.

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Oliver's monologue on a Thursday

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Tomás Mac an t-Saoir talks to Oliver about his cycling adventures though some of the world's most dangerous places.

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Catherine Prasifka, author of bestselling novel 'None Of This Is Serious', talks to Oliver about the real-world online pipelines that can radicalise young boys, as depicted in Netflix's smash hit 'Adolescence'.

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Fiona McPherson, Senior Editor at the Oxford English Dictionary, told Oliver about the Irish words that have been included in the latest update of the Oxford English Dictionary.

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Oliver's monologue on a Wednesday

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This morning Kevin Penrose, a GAA player from Tyrone, spoke to Oliver about coming out to his teammates and family, playing football for his club and his job as a travel reviewer.

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Oliver's monologue on a Tuesday

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David Moore from Astronomy Ireland joined Oliver on the line to explain the strange swirl that was visible in the sky last night. Image: @Space Raccoon

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Author, Róisín Lanigan, told Oliver how her ghost story book all about the horrors of renting, is inspired by her own experiences of the brutal rental market in London. Her book I Want To Go Home But I’m Already There is out now.

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Oliver's monologue on a Monday

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Oliver's monologue on a Tuesday

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Oliver is joined by principal bass player with the Irish Chamber Orchestra for 30 years, Malachy Robinson

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Oliver's monologue on a Friday

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Adam Harris - founder and CEO of AsIAm, Ireland’s Autism Charity, is this week’s Visiting Critic.

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Teacher Emma Mahony and her student Liz Pigott-Glynn tell Oliver about 'Silver Swans', a ballet class for over 50's.

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