The American Dad Wiki

Klaus Heissler is the pentagonist of American Dad!

Klaus Heisler
Klaus Heissler 5637.png

First Episode:


Voiced By:

Dee Bradley Baker


Ex-East German Olympic Skier Earth, Wind & Fire (formerly) Former ski-jumper


Goldfish Human (former) SUV (former) Moose (former) Priest (former)


A future grandson, Grandfather unnamed sister. Unnamed son unnamed grandmother Unnamed mother unnamed father great grandfather unnamed Fish wife & children Unnmaed brothers, unnmaed sisters. Stan Smith (owner/friend) Francine Smith (owner/friend) Steve Smith (owner/friend) Hayley Smith (owner/friend/ex-wife) Roger (roommate/friendly rival) Jeff (owner/friend) Rogu. (Godson) Denise & Brandon (wife And son) unnmaed grandfather unnmaed great grandfather unnmaed great grandmother great Uncle unnamed aunt unnmaed cousins, unnmaed second cousins unnmaed children unnamed grandchildren unnmaed older brother Omar (son)


April 20, 1962



Character History[]

Klaus Heisler is a man in a fish in a bowl. He used to be a East German Olympic skier, but the CIA switched his brain with that of a goldfish to ensure that East Germany wouldn't win. And the Smith family said that he’s 42 in season 14 and his later mentioned in season 14 to be 55 and is also 58 by the time season 15 is out 59 Now


Klaus feels bitter about being trapped in the body of a fish. He went from being a human to being a pet (to being an afterthought in the writers' room), and is justifiably resentful.

Despite his captivity, Klaus doesn't actively plot revenge on Stan, the Smith family, or the CIA. Instead of craving vengance or some kind of return to normalcy, Klaus seems resigned to his fate as he spirals into depression.

Relationships With Other Characters[]

Klaus is treated like crap, and is not considered a member of the Smith family. Even Roger is treated like a family member. This probably hurts Klaus more than he lets on. Despite his mischevious streak and his occasional villainous behaviour, he genuinely cares about the Smiths and actively looks out for their well-being. Klaus has saved them from being Simon slaves, has helped them work through their deeply dysfunctional family problems, and gives them useful advice regularly.

At one point, Klaus was infatuated with Francine, and was jealous of Stan because of it. Lately, it seems that Klaus has accepted the fact that it's never going to happen with her (more likely, though, is that the show's writers just abandoned the idea once they fleshed out his personality).

Facts about Klaus[]

  • Klaus' mind has been inside at least 2 goldfish
  • Klaus' mind has also been inside the body of the former singer of an Earth, Wind & Fire tribute band
  • Klaus loves The Fabulous Thunderbirds
  • Klaus has had the fish disease known as ick
  • Klaus is a Nazi sympathizer
  • Klaus had a clubbed foot on his original human body
  • Klaus studied psychology at Frankfurt University
  • Klaus owes a large gambling debt to the East German mafia
  • Klaus has traveled to, and conquered, some sort of alternate realm
  • Klaus' last name was taken from American Dad writer Keith Heisler
  • Klaus has driven a Yellow Ferrari Testarossa Spyder topless down the Autobahn
  • Klaus has once joined the church of Scientology as seen in Season 15 Episode 16