A backwoods game warden and a local doctor discover that giant leeches are responsible for disappearances and deaths in a local swamp, but the local police don't believe them.
Steve Benton
Ken Clark
Liz Walker
Yvette Vickers
Nan Greyson
Jan Shepard
Cal Moulton
Michael Emmet
Doc Greyson
Tyler McVey
Dave Walker
Bruno VeSota
Sheriff Kovis
Gene Roth
Porky Reed
Dan White
Lem Sawyer
George Cisar
Giant Leech (uncredited)
Guy Buccola
Sam Peters (uncredited)
Joseph Hamilton
Mike (uncredited)
Walter Kelley
Search Party Member (uncredited)
Bill Scully
Search Party Member (uncredited)
Carl Sklover
Giant Leech (uncredited)
Ross Sturlin
Jermey (uncredited)
James Miller
Victim (uncredited)
Killian Miller