The Clocktopus is the fifth episode of the first season of Ben 10 and the 5th episode overall.
Ben must overcome his fear of squids when the Steampunk villain Steam Smythe attacks a construction site of Grandpa Max's favorite pier.
- Steam Smythe makes his debut.
- Ben Tennyson
- Gwen Tennyson
- Max Tennyson
- Cash (first appearance; flashback)
- J.T (first appearance; flashback)
- Steam Smythe (first appearance)
- This episode is aired as the 12th episode in U.K.
|Ben 10 Reboot Episodes (U.K)|
|Waterfilter • The Ring Leader • The Filth • Freaky Gwen Ben • Take 10 • Animo Farm • Clown College • Something I Ate • Rustbucket RIP • Ben 24hrs • Riding the Storm Out • The Clocktopus • Growing Pains • Shhh! • Brief Career of Lucky Girl • Adventures in Babysitting • Steam is the Word • Need for Speed • Cutting Corners • Don't Let the Bass Drop • Villain Time • Bright Lights, Black Hearts • Recipe for Disaster • All Wet • Story, Bored • Xingo • Drive You Crazy • Hole in 10 • The Beast Inside • Tomorrow Today • Forgeti|
|Ben 10 Reboot Episodes (U.S)|
|The Filth • Waterfilter• The Ring Leader • Riding the Storm Out • The Clocktopus • Take 10 • Growing Pains • Shhh! • Brief Career of Lucky Girl • Animo Farm • Clown College • Adventures in Babysitting • Something I Ate • Steam is the Word • The Beast Inside|