Ashley Tisdale and Other ‘Phineas and Ferb’ Stars Respond to Fan Theories and Discuss Show’s Return
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The beloved animated series “Phineas and Ferb” has captured the hearts of fans since its debut in 2007. As the show gears up for its big return in June 2025, the stars behind the iconic characters have finally shared their thoughts on some of the long-standing fan theories. In an exclusive interview with PEOPLE, Ashley Tisdale (Candace), Alyson Stoner (Isabella), Vincent Martella (Phineas), Caroline Rhea (Linda), and David Errigo Jr. (Ferb) opened up about the speculation surrounding the show.
Over the years, fans have developed various theories about the happenings in “Phineas and Ferb.” One theory that sparked discussion among the cast was whether Linda, the boys’ mother, has been aware of their wild antics all along. While some of the stars were unaware of this particular theory, others found it intriguing. Vincent Martella and David Errigo Jr. shared their thoughts, with Errigo Jr. acknowledging that he has heard even more outlandish theories but finds this one intriguing and potentially valid.

Alyson Stoner chimed in to discuss the possible benefits of Linda being aware of her sons’ adventures, suggesting that it could allow Phineas and Ferb to express themselves freely without feeling self-conscious. Caroline Rhea, who voices Linda, shared her personal theory about her character, hinting at a deeper understanding and a desire to protect her children despite the chaos they create.
When questioned about how the brothers finance their elaborate projects, the cast members had a light-hearted response. Martella jokingly brushed off the question with a simple “Don’t worry about it,” while Errigo Jr. humorously speculated about their investment skills and the possibility of them dabbling in the stock market.
Stoner proposed an interesting theory of her own, suggesting that the materials from past inventions could be repurposed for new projects, adding another layer of complexity to Phineas and Ferb’s innovative ventures. Although Tisdale did not delve into specific fan theories, she shared the challenges of voicing her character, Candace, and expressed her excitement for reprising the role after almost two decades.
Despite the passage of time, Tisdale reflected on the enduring popularity of the show and the joy of returning to the beloved character of Candace. The new season of “Phineas and Ferb” is set to premiere with two episodes on Thursday, June 5, on Disney Channel and Disney XD, marking a highly-anticipated return for fans of all ages.
The cast’s insights into the fan theories and the upcoming season offer a glimpse into the creative world of “Phineas and Ferb” and the enduring appeal of the animated series. With the return of the show on the horizon, audiences can look forward to more adventures and laughter with their favorite characters.
