3-2-1 Penguins in the House is similar to VeggieTales in the House. It is produced by DreamWorks, 20th Century Fox and Regency Enterprises. It picks up after 3-2-1 Penguins!
- Zidgel: The Rockhopper's captain who appears to be a cross between heroic James T. Kirk and vain Ted Baxter. He is always concerned about his appearance, especially his hair. Zidgel also should wear glasses, but his vanity doesn't allow it. He is voiced by Terry Crews, with a voice eerily similar to Bruce Onion's.
- Midgel: The Rockhopper's engineer and pilot who is short and speaks with an Australian accent. Midgel sometimes says "Banzai!" and pulls out a Bonsai Tree to trim a branch before driving the ship. He is voiced by Jim Cummings.
- Fidgel: The doctor/scientist of the Rockhopper's crew. Many of his inventions are odd, such as the Gileezle which is the crew's object resizer gun, but can also be useful. From photos in the first episode, we see that Fidgel physically resembles Jason's and Michelle's grandpa, Grandmum's deceased husband. He is voiced by Tom Cruise.
- Kevin: While Kevin has no specific job on the ship, other than cleaning, he is always ready to help when needed by the others. He also sometimes answers questions or solves problems without being aware of it. He is voiced by Chuck Norris.