Foamy is a very rabid dog that Freakazoid rescued from a dogcatcher's van. Although Foamy appears to be Freakazoid's favorite sidekick of all time, the feeling is not mutual. Foamy's sole delight in life (besides finding the perfect fire hydrant) is clenching Freak's head firmly between his jaws and slamming him back and forth.
His voice is provided by Frank Welker.
Appearances 
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- Main Title (cameo)
- Foamy the Freakadog
