Transmissions from space contain warnings to halt space experiments.
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- Iris (voice)
- President of the United States (mentioned)
- Washington, D.C.
- The White House
- Washington Monument
- Arlington, Virginia
- The Pentagon
- Indian Ocean (mentioned)
- North Pacific Ocean (mentioned)
- North Atlantic Ocean (mentioned)
- South Pacific Ocean (mentioned)
- South Atlantic Ocean (mentioned)
- Gamma Sentari (mentioned)
- Pennsylvania (mentioned)
- VR headset
|J.D. Roth||Jonny Quest|
|Michael Benyaer||Hadji Singh|
|George Segal||Dr. Benton Quest|
|Robert Patrick||Race Bannon|
|Paul Eiding||Commander Bennett|
|Ed Gilbert||General Augustine Tyler|
|Chuck Howerton||Vice President of the United States|
- Jessie is absent.
- The shot of the Quest team entering Washington D.C. is reused for them leaving.
- Jessie is still credited.
- Bandit oddly appears out of nowhere at the very last minute.
- The Real Adventures of Jonny Quest: Season One, Volume One DVD set released on February 17, 2009 by Warner Home Video.
- Main article: Alien in Washington/Transcript
Dr. Quest: General Tyler, you are remarkably obtuse.