Robby Takac (born Robert Carl Takac Jr.; September 30, 1964) is an American rock bassist and vocalist. Takac is one of the founding members of the Goo Goo Dolls, along with Johnny Rzeznik. Robby Takac (born Robert Carl Takac Jr.; September 30, 1964) is an American rock bassist and vocalist. Takac is one of the founding members of the Goo Goo Dolls, along with Johnny Rzeznik.