7 Shocking Details About The New Phineas And Ferb Revival (Season 5) You Didn't Know

The wait is finally over! After years of fan speculation, the highly anticipated return of the iconic animated series, Phineas and Ferb, has officially kicked off its revival, treating the new episodes as the show's fifth season. As of today, December 10, 2025, the new adventures of the brilliant stepbrothers, their bust-obsessed sister, and their secret-agent platypus are in full swing, bringing back the pure, innovative joy of summer vacation. This deep dive uncovers the freshest details, including the surprising cast change and the massive 40-episode commitment, confirming that the new season is everything fans hoped for and more.

The revival, spearheaded by original creators Dan Povenmire and Jeff "Swampy" Marsh, is a monumental event for Disney Branded Television. It promises to maintain the award-winning formula: elaborate backyard inventions, Candace's perpetual failure to "bust" her brothers, and Perry the Platypus's daily battle with Dr. Doofenshmirtz. Here is everything you need to know about the new era of the show.

The Complete Phineas and Ferb Revival (Season 5) Fast Facts

The fifth season, often referred to as the Phineas and Ferb revival, has brought the show back to the forefront of animated television. This section provides a list of the most critical and confirmed details about the new episodes, ensuring you have all the updated information.

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• Official Status: The new series is officially treated as Season 5 of Phineas and Ferb.
• Episode Count: Disney has committed to a massive order of 40 new episodes across two new seasons.
• Premiere Date: The first part of Season 5 premiered on Thursday, June 5, 2025, on Disney Channel and Disney XD.
• Streaming Release: The first ten episodes were made available for streaming on Disney+ the following day, June 6, 2025.
• Original Creators: Co-creators and executive producers Dan Povenmire and Jeff "Swampy" Marsh have returned to oversee the production, guaranteeing the show's original feel and humor.
• Timeline: The new storyline is confirmed to take place one year after the original series ended, keeping the core characters in their summer vacation setting.
• Creative Process: The team is utilizing a "script-to-boards hybrid" process, a different approach that still aims to deliver the show's signature quality.

The Cast is Back: Who's Returning and Who's New as Ferb?

One of the biggest concerns for fans of any revival is the return of the original voice cast, whose performances are integral to the characters' identities. Thankfully, the majority of the beloved voices are back, but there is one significant and confirmed change that has garnered much attention: the voice of Ferb Fletcher.

The Returning Iconic Voices

The heart of the show remains intact with the return of the main cast members, ensuring the familiar sounds of the Tri-State Area are preserved. The returning voice actors include:

• Vincent Martella as Phineas Flynn
• Ashley Tisdale as Candace Flynn
• Dee Bradley Baker as Perry the Platypus / Agent P
• Dan Povenmire as Dr. Heinz Doofenshmirtz (co-creator)
• Jeff "Swampy" Marsh as Major Monogram (co-creator)
• Alyson Stoner as Isabella Garcia-Shapiro
• Caroline Rhea as Linda Flynn-Fletcher (Mom)
• Richard O'Brien as Lawrence Fletcher (Dad)

The New Voice of Ferb Fletcher

The most notable casting change for the revival is the role of the silent-but-brilliant stepbrother, Ferb. The original voice actor, Thomas Brodie-Sangster, did not return for Season 5. He was replaced by the talented actor David Errigo Jr., who has taken on the mantle of Ferb Fletcher. The creators have confirmed that Errigo was cast to replace Brodie-Sangster, who reportedly chose to step away from voice acting. Errigo Jr. is known for his work on shows like Ridley Jones, and his performance is designed to seamlessly integrate with the established character, ensuring Ferb’s unique charm and creativity remain central to the new episodes.

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What to Expect from the Plot and Topical Authority

The revival promises to deliver the classic, high-energy, musical summer adventures that earned the original series five Emmy Awards. The show’s core appeal—the endless creativity and the struggle for recognition—will be the driving force behind the 40 new episodes.

The Classic Formula is Back

Co-creators Povenmire and Marsh have been very clear: if it isn't broken, don't fix it. The new Season 5 maintains the beloved three-plot structure:

1. Phineas and Ferb’s Invention: The brothers will continue to build incredible, often impossible, contraptions to maximize their 104 days of summer vacation. This focus on "creative" and "intuitive" problem-solving is a key entity for the show's topical authority.
2. Candace’s Quest to Bust: Candace Flynn's mission to finally expose her brothers to their parents, Linda and Lawrence, remains a central comedic element. Fans are already buzzing about a teased "Season 6 Candace moment," suggesting her quest will continue well into the second half of the revival.
3. Perry the Platypus’s Mission: The secret-agent platypus, Agent P, will continue to foil the schemes of his nemesis, Dr. Doofenshmirtz, whose new "Inators" are sure to be as ridiculous and ineffective as ever. The dynamic between Agent P and Doofenshmirtz Evil Incorporated is a critical LSI keyword that anchors the show's unique humor.

The Povenmire-Marsh Universe is Expanding

For fans looking for deeper topical connections, the return of Dan Povenmire and Jeff "Swampy" Marsh also links the Phineas and Ferb revival to their other successful work. Povenmire's current show, Hamster & Gretel, which also airs on Disney Channel, exists within the same creative universe. While no official cross-over has been confirmed for Season 5, the shared creative team suggests a consistent tone and quality across all their projects.

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The decision to set the new season just one year after the original finale ensures that the characters have not aged significantly, preserving the innocence and endless possibility of their summer. This approach allows the show to bring back the nostalgia while introducing fresh, new musical moments and inventive plots, proving that the summer will never end for Phineas, Ferb, and their friends.