What is the personality type of Riff? Which MBTI personality type best fits? Personality type for Riff from Barney & Friends 1992 and what is the personality traits.
Riff personality type is INTP, while Biff is ISTP.
Even though Biff is an alien, he is not alone. As revealed in the episode "Biff's New Friend", he does have two other brothers, Albert and Arnold, who are quite similar to him. Both are also aliens (one is a (presumably) malevolent female named Evil Queen, the other is a (presumably) malevolent male named King Evil.
Trivia
He is voiced by Maurice LaMarche.
It was hinted that his brother's name was Arnold but it was later revealed that his name is actually Albert.
Biff is the only main character from the first season to have a last name.