Gunka (Gu/nther and Ti/nka) are fraternal twins. They spend a lot of time with each other and are best friends. Gunther and Tinka have a motto -- Gunther: "I'm Gunther". Tinka: "and I'm Tinka". Both: "And we are the Hessenheffers'. They both have European accents and are often seen wearing unique, sparkly, glittered clothes that match.
CeCe and Rocky thought that Gunther was moving back to the old country where he and Tinka are from. Tinka said it tears her heart out and then put the felt heart from Little Tinka and put it on Gunther's shirt.
Tinka seemed happy for Gunther when CeCe asked him to the dance.
Tinka was originally played by Stefanie Scott in the original unaired pilot episode, before she landed the role of Lexi Reed on A.N.T. Farm.
They have sock puppets called the Little Hessenheffers called Little Gunther and Little Tinka. They have appeared in Hot Mess It Up and Break It Up.
When someone insults just one of them, the other also gets equally insulted.
They design their own matching clothes.
They are possibly based off of Sharpay and Ryan Evans (High School Musical).
Gunther seems to be the nicer, calmer twin. Unlike Tinka he has socialized with Ty, Deuce, Flynn, CeCe and Rocky (though with Rocky it may have been out of seeking moral support upon Tinka's arrest).
Gunther was very angry when he found the thiefs of his and Tinka's clothes but Tinka was the first to take physical action another indication that Gunther is the calmer twin (Or maybe its just that he's a guy and she's a girl).
When they found the clothing thiefs both pairs started to apparently talk in thier native tongues, Gunther went to miming something and Tinka went to blows.