Dimension 20(2018)
Say hi, intrepid heroes.
Dimension 20 Synopsis
Heed the call of adventure and enter Dimension 20 where Game Master Brennan Lee Mulligan, joined by comedians and pro gamers, blends comedy with tabletop RPGs.
Dimension 20 (2018) is a sci-fi & fantasy, comedy, reality and action & adventure series that premiered on September 19, 2018, spanning 30 seasons and 313 episodes. It stars Brennan Lee Mulligan, Emily Axford, Ally Beardsley and Brian Murphy. Viewers rate it 9.1 out of 10 across 18 ratings.
- First aired:
- 2018-09-19
- Last aired:
- 2026-07-08
Dimension 20 (2018) Trailer
Watch the official trailer for Dimension 20 before you start streaming.
Dimension 20 Videos & Clips
Official trailers, teasers, clips and featurettes for Dimension 20.
Dimension 20 - Series Trailer
Trailer
How To Watch Dimension 20
Featurette
Dimension 20 Cast & Crew
Main cast
Brennan Lee Mulligan
as Game Master
Emily Axford
as Tiddlywinks / Cutie Pie
Ally Beardsley
as Calypso
Brian Murphy
as Ol' Clyde Horsey
Zac Oyama
as Avery Augustusus Archibald Tinsley
Siobhan Thompson
as Constance
Lou Wilson
as Wyon
Explore more Sci-Fi & Fantasy shows
Dimension 20 Reviews & Ratings
Average viewer score of 9.1/10 from 18 ratings.
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Dimension 20 – Frequently Asked Questions
Where can I stream Dimension 20?
+
Dimension 20 (2018) is available to stream on Amazon Prime Video and Amazon Prime Video with Ads, with episodes also available to buy from Amazon Video. Availability comes from JustWatch data and varies by country.
How many seasons of Dimension 20 are there?
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Dimension 20 has 30 seasons and 313 episodes in total, starting from its premiere on September 19, 2018.
Is Dimension 20 still running?
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Dimension 20 is currently listed as returning series, with the most recent episode airing on July 8, 2026.
Who is in the cast of Dimension 20?
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Dimension 20 (2018) stars Brennan Lee Mulligan, Emily Axford, Ally Beardsley, Brian Murphy and Zac Oyama. The full cast list with character names is available in the cast section of this page.
Is Dimension 20 any good?
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Dimension 20 (2018) is rated 9.1 out of 10 from 18 viewer votes, and suits viewers who like sci-fi & fantasy, comedy and reality series. Reviews from viewers are collected further down this page.
Where can I watch the Dimension 20 trailer?
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The official Dimension 20 trailer is embedded in the trailer section of this page and plays instantly in your browser.