Creator	Role	# of Episodes
Anna Ptaszynski Anna Ptaszynski is a QI Elf and one of the regular presenters of the podcast, No... more	Host	556
Dan Schreiber Dan Schreiber is a radio producer living in the United Kingdom and is also a wri... more	Host	291
Andrew Hunter Murray	Host	556
James Harkin James Harkin is a television writer and host. Harkin is also one of the co-hosts... more	Host	556
Matt Parker Matthew Parker is an author, comedian, YouTube personality, and communicator.... more	Guest	1
Paul Smith Paul Smith is a musician.	Guest	1
Susie Dent That woman in Dictionary Corner.	Guest	1
Timothy Peake Timothy Peake is an Army Air Corps officer, European Space Agency astronaut, for... more	Guest	1
Bec Hill Bec Hill is a comedian, writer, presenter, actor, and artist.	Guest	1
Ed Yong Ed Yong is a science journalist and staff member of The Atlantic.	Guest	1
Dr. Karl Kruszelnicki Dr. Karl Kruszelnicki AM (/ˌkrʊʃəlˈnɪtski/ KRUUSH-əl-NIT-skee), often referred t... more	Guest	1
John Hodgman John Hodgman is an author, actor, and humorist. His published written works incl... more	Guest	1
Steve Mould Steve Mould is a British educational YouTuber, author, and science presenter who... more	Guest	1
Hannah Fry Hannah Fry is a British mathematician, lecturer on the Mathematics of Cities, te... more	Guest	1
Neil Gaiman Neil Gaiman is an author of short fiction, novels, comic books, graphic novels, ... more	Guest	1
Mark Mason	Guest	1
Ella Al-Shamahi Ella Al-Shamahi is an explorer, paleoanthropologist, evolutionary biologist, and... more	Guest	3
Shappi Khorsandi Shappi Khorsandi is a comedian and author.	Guest	1
Hank Green Hank Green is an entrepreneur, musician, educator, producer, vlogger, and author... more	Guest	1
Lucy Porter Lucy Donna Porter is an English actress, writer, and comedian.	Guest	2