|Free Waterfall, Sr.|
|Planet||Pluto (Ice Plains)|
|Profession||Penguins Unlimited (Leader)|
|Relatives|| Old Man Waterfall (father)|
Free Waterfall, Jr. (son)
Free Waterfall III (grandson)
Hutch Waterfall (grandson)
Frida Waterfall (granddaughter)
|First appearance||The Birdbot of Ice-Catraz|
|Voiced by||Phil Hendrie|
Free Waterfall, Sr. (b. January 28, 2941 - March 4, 3001) (height: 6'0") was the son of Old Man Waterfall, father of Free Waterfall, Jr. and grandfather to Free Waterfall III, Hutch Waterfall and Frida Waterfall.
- He represents animal rights activist group leaders.