This article is about the Cosmonaut. You may be looking for Sergei the Snail.
Sergei in the window
Gender: Male
Age: Unknown (He is a year older since "Mommy Can You Hear Me?")
Nationality: Russian
Professional Information
Friends and Family
Phineas Flynn
Ferb Fletcher
Behind the Scenes
Debut Appearance:
  "Run Away Runway"
Final Appearance:
  "Mommy Can You Hear Me?"
Voiced by:
Swampysky Marshkarov

Sergei Kushnarov (Сергей Кушнаров) is a Russian Cosmonaut. His career appeared to be dedicated to proving the existence of wormholes. He was celebrating his birthday on an international space station with two other Russian astronauts while awaiting an expected greeting from Phineas Flynn and Ferb Fletcher.

However, when Phineas and Ferb were set to send out the greeting, an RC helicopter with a Mindy Mimmick doll taped to it put together by Candace in an attempt to get Linda to see their contraption crash-landed into the microphone receiver. The recording of Candace saying, "Turn around", which were broadcasted to the astronauts brought to their attention that an asteroid was on a collision course with their satellite.

The evasive action they took sent them into a wormhole. Nothing is known about them after that, other than that "somewhere beyond Jupiter, and beyond time" an aged Sergei on what we could assume was his death bed received his birthday greeting from an alien Ferb fetus ("Mommy Can You Hear Me?").


Background Information


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