Reese Witherspoon
Susan Murphy / Ginormica
Susan Murphy / Ginormica
B.O.B.
Dr. Cockroach Ph.D.
Gallaxhar
The Missing Link
General W.R. Monger
Derek Dietl
President Hathaway
Wendy Murphy
Carl Murphy
Computer
News Reporter
Katie
Private Bullhorn / Helicopter Pilot / Advisor Ortega
Commander / Advisor Smith
Secret Service Man #1 / Lieutenant
Wilson
Advisor Cole / Army Commander Jones
Advisor Wedgie
Technician Jerry