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- Captain Rossanov (single appearance)
- Petrov (single appearance)
- Natasha (only mention)
- Sonar man (single appearance)
- Professor Gunter Erikson (dies)
- North Pacific
- Sea of Okhotsk
- Russia (mentioned)
- St. Petersburg (mentioned)
- Anchorage, Alaska (mentioned)
- Bifrost Effect
- Quest wristwatch
|Quinton Flynn||Jonny Quest|
|Rob Paulsen||Hadji Singh|
|John de Lancie||Dr. Benton Quest|
|Robert Foxworth||Race Bannon|
Professor Gunter Erikson
|Clancy Brown||Colonel Nikolai|
|Gregg Berger||Captain Rossanov|
|Mark Hamill||General Vostok|
- The episode was originally titled Cold War, but was changed due to belief from Standard & Practices that it sounded too political. The original title is alluded to as a movie playing at the Regent in a previous episode Thoughtscape, also written by Lance Falk, although it was producer Larry Houston, who sneaked it in.
- General Vostok last appeared in Rock of Rages.
- Professor Erikson first appeared in the original series episode The House of Seven Gargoyles.
- The Quest Byte tag is a parody of the famous scene from the first Mission: Impossible film, where Tom Cruise's character balances from the ceiling (it even has similar music).
- B.J. Ward is uncredited as Iris in the Quest Byte.
- Vostok wants the team alive after seeing that the Dragonfly has crashed, but he constantly has his men fire on them.
- The Real Adventures of Jonny Quest: The Complete Second Season DVD set released on November 10, 2015 by Warner Archive Collection.