Roll up, roll up... plenty to see here. P.T. Barnum was, in so many ways, The Greatest Showman. But his success as a circus pioneer came at a great ghastly cost to many. Sara Pascoe, John Tothill and Gbemi Oladipo weigh up those costs to decide whether Barnum was evil or genius.

Additional material: Eve Delaney and Christina Riggs

The producer was Sasha Bobak. Evil Genius with Russell Kane is a BBC Studios Audio Production for BBC Sounds.

She was the Queen of Cocaine, the master of shootouts and the only ‘man’ Pablo Escobar was ever afraid of. In this episode, Peter Rethinasamy, Laura Smyth and Rachel Fairburn decide if she was a brutal murderer or the ultimate ‘boss bitch’.

Additional material: Eve Delaney and Christina Riggs

The producer was Sasha Bobak. Evil Genius with Russell Kane is a BBC Studios Audio Production for BBC Sounds.

Was Agatha Christie a creative legend, who dominated an entire genre and continues to captivate a global audience? Or does her choice of language, titles and storylines reveal a much more sinister, dangerous side to the queen of murder? Fatiha El-Ghorri, Jess Fostekew and Eshaan Akbar decide.

Additional material: Eve Delaney and Christina Riggs

The producer was Sasha Bobak. Evil Genius with Russell Kane is a BBC Studios Audio Production for BBC Sounds.

Was Al Capone a brutal villain who took no prisoners? Or a Robin Hood type figure who seized an opportunity in a tale of rags to riches? Jack Skipper, Maisie Adam and Daliso Chaponda are tasked with finding out whether Al Capone is evil or genius.

Additional material: Eve Delaney and Christina Riggs

The producer was Sasha Bobak. Evil Genius with Russell Kane is a BBC Studios Audio Production for BBC Sounds.

Evil Genius is back soon with more good, bad, ugly - and very, very funny. Hear it first on BBC Sounds.

Vampire Bats: should we give these misunderstood goth pigeons another shot? Or ghost them for good?

Join comedian Russell Kane, zoological correspondent Jules Howard and comedian Rachel Fairburn, as they check out the amazing world of vampire bats - deciding whether they're evil or genius.

Additional material by: Eve Delaney and Christina Riggs.

Evil Animals with Russell Kane is a BBC Studios Production for BBC Sounds.

Maggots: should we love these sweet, misunderstood baby flies? Or dread these gruesome creepies?

Join comedian Russell Kane, entomologist Erica McAlister and comedian Ola Labib as they check out the remarkable world of maggots.

Additional material by: Eve Delaney, Christina Riggs and Catherine Beazley.

Evil Animals with Russell Kane is a BBC Studios Production for BBC Sounds.

Snakes. Are they slithering wronguns or super sleek legends?

Join comedian Russell Kane, zoologist Yussef Rafik and comedian Felicity Ward as they deep-dive snakes, looking specifically at the viper to decide if they are Evil or Genius.

Additional material by: Eve Delaney, Christina Riggs and Catherine Beazley.

Researcher: Catherine Beazley

Evil Animals with Russell Kane is a BBC Studios Production for BBC Sounds.

Domestic cats. They divide opinion. But are they really just gorgeous fluffballs or the devil incarnate?

Join comedian Russell Kane, zoologist, vet & author Jess French and comedian Jess Fostekew as they deep-dive cats.

Additional material by: Eve Delaney, Christina Riggs and Catherine Beazley.

Evil Animals with Russell Kane is a BBC Studios Production for BBC Sounds.

Bottlenose Dolphins. Smiley acrobatic boffins or nature’s smug psychopaths? Evil or Genius?

Join comedian Russell Kane, zoologist Billy Heaney and comedian Lindsey Santoro as they deep-dive Bottlenose Dolphins.

Additional material by: Eve Delaney & Christina Riggs

Evil Animals with Russell Kane is a BBC Studios Production for BBC Sounds.