Mel Giedroyc: Unforgivable - Episode Guide

Mel Giedroyc and Lou Sanders are joined by Graham Norton, Desiree Burch and Alex Brooker. Graham reveals a lie to his mother that went too far leading to him having to have his appendix removed, Alex talks about 'trying to catch a girl' in a Home Alone inspired trap and Desiree admits to cheating with a friend's boyfriend at high school.

Jimmy reveals an act of erotic vandalism committed at school, Judi tells all about the horrific demise of her beloved pet goldfish and Richard tells a truly Unforgivable tale about rugby tackling a disabled boy.

Johnny Vegas over shares about what he used to get up to in the bath, Josh tells all about the time he ruined hundreds of Beckham fans day, and Clare admits blaming her brother for a bowel movement in the bath 40 years ago.

Tom tells all about the time he was responsible for an old lady ending up in a pond, Gemma Collins reveals the crime she committed to catch a ex cheating and Darren Harriott relives his short-lived gang days.

Mel Giedroyc and Lou Sanders are joined by Richard Ayoade, Ed Gamble and Sindhu Vee.

Mel Giedroyc and Lou Sander are joined by Jennifer Saunders, Harry Redknapp and Phil Wang.

Mel Giedroyc and Lou Sanders are joined by Jo Brand, Sara Pascoe and Chris Kamara.

Mel Giedroyc and Lou Sanders are joined by David Baddiel, Rob Rinder and Sophie Duker.

This week, Mel and Lou are joined by brilliant stand-ups Sarah Millican, Jamali Maddix and Chris McCausland. Sarah discusses what ingredient she thinks should be added to cakes in Amsterdam, Chris must apologise to one of the victims of his prank-fuelled past while Jamali and Mel find out they have similar tactics when being caught short without a loo.

This week, Mel and Lou are joined by the brilliant Katherine Ryan, Drag Race standout star Bimini Bon Boulash, and stand-up Toussaint Douglass. Katherine spills the beans on her prom night, Bimini reveals what happens after too many vodkas and Toussaint explains why you should never accept chicken from strangers.

This week, Mel and Lou are joined by stand-up and Strictly champion Bill Bailey, award-winning comedian Rosie Jones and former heavyweight champion of the world David Haye.

Bill comes face to face with multiple victims of his and his dog's bad behaviour, David overshares about creative ways to take his training supplements and Rosie confesses all the times she's used her disability for evil.

Mel and Lou are joined by the hilarious Rob Beckett, Scarlett Moffatt, and Paul Chowdhry. Rob dishes the dirt about a date that went wrong, Scarlett reveals what happens when you take her on a girls' holiday and Paul tells us why gigging isn't always a laugh.

Mel and Lou are joined by actor Sally Phillips, comedian Alan Davies and stand-up Ria Lina. Sally reveals the best way to get back at a horrible boss, Alan tells all about his court appearance and we find out why you should never leave your kids with Ria.

Mel and Lou are joined by radio DJ Sara Cox, TV favourite Keith Lemon and Britain's Got Talent's Nabil Abdulrashid. Sara faces the consequences of her less than model behaviour, Keith overshares about puberty and Nabil is confronted by the many victims of his pranks.

This week, Mel and Lou are joined by the brilliant Jack Dee, TV sweetheart Lorraine Kelly, and internet sensation Munya Chawawa. Jack tells all about an unintentional rock and roll night on tour, we find out how Lorraine talks to her bosses and Munya is confronted by the victim of a prank that went too far.

Mel and Lou are joined by comedian Jason Manford, Strictly star AJ Odudu and actor Jessica Knappett. Jason reveals the lengths he'd go to not share a room with his brother, AJ reveals the secret to DJing, and Jessica explains why you should never attend a funeral with her.

Mel and Lou are joined by Rhod Gilbert, Susan Wokoma and Dermot O'Leary. Rhod reveals why he shouldn't be trusted with a campervan, Susan tells an X- rated story and Dermot lifts the lid on a rendezvous from his early TV days.

Joel Dommett lifts the lid on a shocking act with a kettle, Craig Revel Horwood reveals how he ruined a bride's big day, and Thanyia Moore bares all on getting revenge on a teacher.

This week Mel and Lou are joined by Charlotte Church, Sophie Willan and Lara Ricote. Charlotte spills the beans on her wild child past, Sophie dishes out some karma and Lara reveals how she pulled off a cheese-based heist.

This week Mel and Lou are joined by Guz Khan, Roisin Conaty and Gregg Wallace. Guz explains why he urinated in a VCR player, Roisin reveals how she tried to trick the police and Gregg reveals his thieving past.

This week Mel Giedroyc and her dishonourable assistant Lou Sanders are joined by Stephen Mangan, Josh Pugh and Ellie Taylor.

More anecdotes revealing the very bad sides of some very famous faces with Mel and Lou - they're joined this time by Kerry Godliman, Tom Lucy, and Lethal Bizzle.

This week Mel and Lou are joined by Meera Syal, Seann Walsh and Maisie Adam. Meera gets revenge with a dirty nappy, Seann tells how he evaded the police and Maisie spills the beans on an illicit encounter.

Mel and Lou are joined by Olga Koch, Jonathan Ross and Slim.

In the first episode, Mel and her dishonourable assistant Lou Sanders are joined by Rylan Clark, Lucy Beaumont and Fatiha El-Ghorri. Lucy admits she nicked knickers in school, Fatiha reveals her secret cooking ingredient is sheep poo, and Rylan spills the beans on how he combined a pigeon meeting a sticky end and getting revenge on a colleague.

Mel and Lou are joined by Joel Dommett, Omid Djalili and Lindsey Santoro.
Joel confesses his dastardly behaviour as his wife gave birth and Omid reveals how he upset Gwyneth Paltrow.

This week Mel and her dishonourable assistant Lou Sanders are joined by Nish Kumar, Ruby Wax and Reuben Kaye. Nish spills the beans on his x-rated workplace behaviour, Ruby tells of her drug smuggling past and Reuben's NSFW pantomime pranks are revealed.

With Rafe Spall, Dan Tiernan and Carol Vorderman. Rafe reveals how he managed to evacuate both his bowels and a swimming pool, Carol spills the beans on her bad behaviour at a wedding, and Dan confesses to some criminal misdeeds.

Mel and Lou are joined by Ross Kemp, Shirley Ballas and Rosie Jones. Shirley divulges her revenge on a cheating husband and Ross spills all on a prison-based prank.

Mel and her dishonourable assistant Lou are joined by Daisy May Cooper, Emmanuel Sonubi and Ardal O'Hanlon. Emmanuel explains the rules of the game "flaming a***holes", Daisy tells us why you should never invite her to a wedding and Ardal reveals how dressing up as a priest ended up with him in a strangers' bath.

Mel and Lou are joined by The One Show presenter Alex Jones, voice of Love Island Iain Stirling and US comedian Tim Renkow. Alex reveals how she got into hot water with the BBC for lying, Iain spills the beans on being sacked, and Tim tells all about his mischievous method of evading train fares.

This week Mel and Lou are joined by TV personality Jamie Laing, comedian Fern Brady and musician Jordan Stephens. Amongst the misdeeds, Jamie reveals why he got arrested after a bungee jump, Fern lifts the lid on the terrible sex education she gave to her friends, and Jordan spills the beans on a long-running feud with a famous children's TV presenter.