Tarn Adams is known for being one half of Bay 12 Games, creators of the sprawling management and simulation program Dwarf Fortress.
Episodes:
Episode 19: Throw the Vampire Down the Well So My Fortress Can Be Free (14 June 2014)
Extrasode 2: Chatting with Tarn Adams (14 June 2014)
Episode 70: Overpowered Webs (5 March 2016)

Dan Adelman is an independent video game biz-dev expert who helps game makers market their products. He previously served as the Indie Boss for Nintendo of America.
Episodes:
Episode 27: The Biz-Dev Episode (6 September 2014)

Chris Avellone is a game designer and writer recognized for his work at Interplay and Obsidian Entertainment and on games such as Planescape: Torment, Fallout 2, Fallout: New Vegas and Wasteland 2.
Episodes:
Episode 14: Nothing New (28 April 2014)
Episode 57: Nolan North Voices: You (23 July 2015)

Paul Bellezza is a product manager at Riot Games. In the past, he founded indie studio The Odd Gentlemen and worked on the game The Misadventures of P.B. Winterbottom.
Episodes:
Episode 48: The Jabba Comparison (6 May 2015)

Anthony Burch is a writer and actor who co-created the online web series "Hey Ash, Whatcha Playin?" and served as lead writer on the game Borderlands 2.
Episodes:
Episode 97: Germ Gun (22 July 2017)

Ashly Burch is an actor and voice actor who co-created the online web series "Hey Ash, Whatcha Playin?" and can be heard in games such as Horizon Zero Dawn, Life is Strange and Borderlands 2.
Episodes:
Episode 85: Lying On Top of a Car (That is Also Yourself) (19 November 2016)

David D'Angelo is a programmer at Yacht Club Games who helped program the studio's first major release, Shovel Knight.
Episodes:
Episode 41: Anime is for Nerds (21 January 2015)

Ed Del Castillo is a game designer best known for producing the Command and Conquer series of games at Westwood Studios before founding his own company Liquid Entertainment, where he produced the game Battle Realms.
Episodes:
Episode 10: This Can't Be Teletype! (10 March 2014)
Extrasode 1: Chatting with Ed Del Castillo (10 March 2014)
Episode 63: Gargoyle Babies (17 October 2015)
Episode 91: Gamedev in India (20 February 2017)

Steve Circuiton is a game designer currently developing the indie platformer Tower of the Gorillion.
Episodes:
Episode 4: xXxxWaRsOnGdOgFlEsHxxXx (22 December 2013)

Jim Stormdancer is the founder of Twinbeard Studios and the mastermind behind the Frog Fractions series of games.
Episodes:
Episode 55: Frog Fractions 2 is a Yacht (25 June 2015)
Extrasode 3: Chatting with Jim Crawford (25 June 2015)
Episode 68: Neil Degrasse Titan (28 January 2016)

Jonathan Evans is a game designer who has worked on titles such as The Typing of the Dead: Overkill, SkySaga: Infinite Isles and Crazy Taxi: City Rush.
Episodes:
Episode 6: The Podcast of the Dead: OVERKILL (25 January 2014)

Nina Freeman is an independent game designer, streamer and poet. She has designed independent games such as How Do You Do It? and Cibele, and designed levels for Tacoma at Fullbright.
Episodes:
Episode 15: Masters of Maybe Doing Sex? (10 May 2014)
Episode 54: Chest Hair or Spiders (17 July 2015)

Bill Gardner is the co-founder of The Deep End Games where he helped make Perception. Before that he served as lead level designer on Bioshock at Irrational Games.
Episodes:
Episode 53: We Were Irrational, But Now We've Gone Off The Deep End (10 June 2015)

Steve Gaynor is the founder of Fullbright, the studio responsible for Gone Home and Tacoma. He was previously the lead designer on Minerva's Den, an expansion for Bioshock 2 at 2K Marin.
Episodes:
Episode 78: Japanada (4 August 2016)

Elyot Grant is a co-founder of Lunarch Studios, makers of the game Prismata.
Episodes:
Episode 32: Liberty is ON HOLD (18 October 2014)

Brandon Harrison is a software engineer at Jam City, and previously served as gameplay programmer at Bread Machine Games and manager of the Philadelphia Game Lab.
Episodes:
Episode 24: A Wraparound Hot Dog (9 August 2014)

Judd Hollander was previously the Lead Production Tester at Activision.
Episodes:
Episode 7: The Yoda Chronicles (1 February 2014)

S.A. Hunt is an author of horror and fantasy novels such as The Outlaw King series, Malus Domestica and The Fear Suit.
Episodes:
Episode 20: They Liked It So They Put Two Rings On It (28 June 2014)

Renee Gittins is the creative director at the studio Stumbling Cat, where she is working on the game Potions: A Curious Tale.
Episodes:
Episode 105: The Hunt for Lenny Dean (10 January 2018)

Ryan Ike is a musician who has composed music for games like Where The Water Tastes Like Wine, West of Loathing and Frog Fractions 2. He also wrote the theme music for Dark Pages Podcast!
Episodes:
Episode 77: Art Has No Meaning (7 July 2016)

Aaron Jessie is an environmental artist at thatgamecompany where he worked on Journey. He has also worked on games such as The Evil Within and Defiance.
Episodes:
Episode 72: How Sand Works (31 March 2016)

Ben Johnson is a senior designer at Double Fine Games. He also has worked on games such as Dead Space and Perception, and helps run the Babycastles video game nonprofit in New York.
Episodes:
Episode 56: Hog-with-Tusks and Curly Beard (8 July 2015)

Zack Johnson is the founder of Asymmetric Publications, developer of games such as Kingdom of Loathing, Word Realms and West of Loathing.
Episodes:
Episode 12: Orc Fatigue (5 April 2014)
Episode 50: Ipecac Mountain (21 May 2014)

Jeff Kaplan was previously the vice president of Blizzard Entertainment and the lead designer and game director of the game Overwatch.
Episodes:
Episode 125: Chatting with Jeff Kaplan (31 January 2019)

Greg Kasavin is a writer and designer at Supergiant Games, where he has worked on Bastion, Transistor and Pyre. Before that he was the editor-in-chief at GameSpot.
Episodes:
Episode 35: The One-Year Podcastversary (12 November 2014)

J.P. LeBreton has worked on games such as Broken Age, Bioshock and The Cave. He is possibly the world's leading expert on DOOM.
Episodes:
Episode 73: The Doom that Came to SEGA Sarnath (4 May 2016)

David Libby is the chief technology officer at TERC, a research and education group that developed the game Zoombinis.
Episodes:
Episode 46: Blueberries, not Eggplants (15 April 2015)

Michael Lutz is an academic and game designer who has made games such as The Uncle Who Works For Nintendo, My Father's Long, Long Legs and The Tower of the Blood Lord.
Episodes:
Episode 37: Edutainment Ecco (27 November 2014)

Joseph Matheny is a programmer, game designer and the creator of Ong's Hat, the first modern alternate reality game.
Episodes:
Episode 154: Chatting with Joseph Matheny (29 September 2020)

Edmund McMillen is an independent game designer who has made games such as Super Meat Boy, The Binding of Isaac and The End is Nigh.
Episodes:
Episode 11: The Catma Sutra (30 March 2014)

Rand Miller is the co-founder of Cyan and has produced games such as Myst and Obduction.
Episodes:
Episode 80: The Tripod (29 August 2016)

Erica Newmann is an ecologist who served as the ARG Closer for the game Frog Fractions 2.
Episodes:
Episode 89: The Meaty Nugget (30 January 2017)

Johnnemann Nordhagen is the founder of Dim Bulb Games, producer of Where the Water Tastes Like Wine. He also worked on games such as Bioshock 2 and Gone Home.
Episodes:
Episode 126: Where the Podcast Tastes Like Wine (9 February 2019)

Melvin Ok is a translator and localizer who has worked for companies such as Microsoft, SEGA, Konami and Capcom.
Episodes:
Episode 3: Controlled Substance: Dog (3 December 2013)

Michael O'Reiley is an independent game developer best known for making I Want To Be The Guy.
Episodes:
Episode 23: The Nathan Drake Problem (24 July 2014)

Davin Pavlas is a psychologist who serves as the director of insights at Riot Games.
Episodes:
Episode 43: League of Casuals (1 March 2014)

Shawn Pierre is an independent developer who organizes the Philadelphia Game Mechanics.
Episodes:
Episode 150: Philly Game Mechanics (11 July 2020)

Tyriq Plummer is an independent developer who is the creator of Catacomb Kids and has done pixel art for games like Crypt of the Necrodancer: Cadence of Hyrule.
Episodes:
Episode 130: Young Phat Thor (22 May 2019)

Lucas Pope is the award-winning designer of independent games Papers, Please and Return of the Obra Dinn.
Episodes:
Episode 132: The Monkey's Paw (23 June 2019)

Seth Rosen is an independent game developer who has worked on titles such as Bioshock Infinite, Don't Starve and Nectar Vector.
Episodes:
Episode 21: You Got Screeched (5 July 2014)

Micah Sifry is the founder of Civic Hall, an organization dedicated to helping kickstart the use of technology for public civic good, and has written widely about democracy, movements, organizing and tech.
Episodes:
Episode 160: Democracy and Gamification (13 August 2021)

Dave Sirlin is the founder of Sirlin Games and has produced games such as Yomi, Puzzle Strike and Chess 2.
Episodes:
Episode 29: The Hero was a Wristwatch (30 September 2014)

Mare Sheppard and Raigan Burns are the founders of Metanet Software, developers of games such as N, N+ and N++.
Episodes:
Episode 47: Pancake Ninja (22 April 2015)

Brjann Sigurgeirsson is the founder of Image & Form, developers of the popular SteamWorld franchise.
Episodes:
Episode 17: The Greased, the Bolts and the Rusty (31 May 2014)

Jay Tholen is the founder of Tendershoot and the creator of the games Dropsy and Hypnospace Outlaw.
Episodes:
Episode 129: The Sad Clown and the Happy Internet (14 April 2019)

Michael Townsend is the founder of doublespeak games, developer of games such as A Dark Room and Gridland.
Episodes:
Episode 33: In the Year 2020, WinAmp Returns (29 October 2014)

Joe Tung is the co-founder of Theorycraft Games. In the past he was a Senior Producer at Riot Games and an Executive Producer at Bungie, working on the Halo franchise.
Episodes:
Episode 48: The Jabba Comparison (6 May 2015)

Andy Weir is the New York Times bestselling author of The Martian and Artemis.
Episodes:
Episode 60: Looking at Matt Damon (1 September 2015)