As of June 2026, Inspector Gadget Season 4 aired in 2018 with 26 episodes — streaming now on Hoopla. Full episode guide and where to watch below.
Inspector Gadget Season 4 poster
← Back to Inspector Gadget

Inspector Gadget Season 4

2018 26 Episodes Animation · Action & Adventure ⭐ 6/10

Right now, Inspector Gadget Season 4 is on streaming and several other platforms, sitting at 6/10 on TMDB. A reliable choice when you want a comedy that delivers on its premise. The comedy format can be hit and miss at this level of ambition, but Inspector Gadget Season 4 handles it with more confidence than most. The 35 viewer ratings on TMDB are not an accident — shows that sustain that level of engagement across their run have earned it. A single, focused run means there is no filler — every episode carries weight. Get it started on whichever platform has it and see why so many viewers already have strong opinions about it.

Canadian production values give Inspector Gadget Season 4 a feel distinct from American and international alternatives. When Dr. Claw returns, Inspector Gadget is brought out of retirement to defeat him again, now with Penny and Brain's open participation. Ivan Sherry and Tara Strong lead a cast that brings real weight to the material. It aired in 2018. The real test of any comedy is whether it is still funny once you know all the jokes, and Inspector Gadget Season 4 holds up on rewatch in a way that separates it from one-season curiosities. It delivers reliably on what it promises, which is more than most of its competition manages.

Ideal for when you want something light without wanting something stupid. Inspector Gadget Season 4 respects its audience — rarer than it should be. The writing assumes you can keep up and rewards you when you do, with jokes that have layers and callbacks that make rewatches genuinely worthwhile. The complete run is available and short enough to finish before the weekend is over. The kind of comedy that you recommend to someone who claims they do not really watch much TV, and then check back in a week to find they have finished it.

📡 Where to Watch Inspector Gadget Season 4

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
TV Butler Pro app
🎩 TV Butler Pro
You find it. Your history remembers it.

🎬 Inspector Gadget Season 4 — Episode Guide

E1
Frienemy of the State
2018-05-18
When Talon is caught, Claw replaces him with Penny's friend Mal.
E2
MADhenge
2018-05-18
When Penny interferes with Talon's attempt to collect cosmic energy from Stonehenge, both Penny and Talon are given cosmic powers.
E3
The Claw Who Stole Christmas
2018-05-18
Claw sets out to end Christmas by unleashing cheer-destroying nanobots at a tree lighting ceremony.
E4
The Thingy
2018-05-18
Talon is sent to the North Pole to acquire a newly-discovered, unclassified, biological organism.
E5
The Talon-ted Mr. Colin
2018-05-18
Talon infiltrates HQ while undercover, hoping to get HQ's missile defense codes from Kayla.
E6
MADzilla
2018-05-18
MAD sets out to steal a size modification ray, but accidentally makes MADcat grow to giant size.
E7
Anti-gravity
2018-05-18
MAD attempts to steal a gravity nullifying device.
E8
Too Many Talons
2018-05-18
Claw sends Talon to steal a duplicating device, which Talon uses to duplicate himself.
E9
Star Power
2018-05-18
MAD begins stealing the "star power" from celebrities.
E10
Panda-monium
2018-05-18
Talon impersonates a panda to disrupt peace talks between two countries.
E11
Under the MADnight Sun
2018-05-18
MAD tries to mine a highly magnetic ore from the forest where Gadget and Penny are camping.
E12
Skyrates Off the Starboard Bow!
2018-05-18
MAD sets out to hijack Sir Owen Barnstormer's new Ultra Blimp Mark II and take its cold fusion power source.
E13
Fate it ‘til You Make it
2018-05-18
MAD tries to the Oracle of Delphi so they can use her ability to see the future.
E14
Once Upon a Screentime
2018-05-18
MAD sends out a hypnotizing image on every screen in the world.
E15
The MADstache of Professor Coin
2018-05-18
Talon disguises himself as Penny, while making Penny look like a MAD agent.
E16
MADthuselah
2018-05-18
Claw develops a device to make people old, making himself younger by comparison. Penny becomes a senior during a fight with Talon.
E17
The Heir Affhair
2018-05-18
Talon kidnaps a wealthy old lady and tries to convince her to make him her heir.
E18
Parched Nemesis
2018-05-18
MAD steals all the water in Metro City.
E19
Trees Company
2018-05-18
The MAD Weed-whacko has been rehabilitated, but Claw wants him to destroy Central Park in New York.
E20
MADtrack
2018-05-18
Gadget is assigned to transport Jacques Crankcase to prison, via a hover-train.

🎭 Cast of Inspector Gadget Season 4

Ivan Sherry
Ivan Sherry
Inspector Gadget (voice)
Tara Strong
Tara Strong
Penny (voice)
Martin Roach
Martin Roach
Dr. Claw (voice)
Scott McCord
Scott McCord
Brain / Professor Von Slickstein (voice)
Lyon Smith
Lyon Smith
Talon (voice)

📋 All Seasons of Inspector Gadget

Season 1Season 2Season 3

Never Lose Track of Inspector Gadget

TV Butler Pro lets you search every streaming service in seconds, tracks what you've watched, and works completely free. No app download needed.

🎩 Try TV Butler Pro Free