"Male"@en . "Jeffrey Theodore \"Jeff\" Rosso is the guidance counselor at William McKinley High School. He is portrayed by Dave 'Gruber' Allen."@en . . "Guidance Counselor"@en . "Actor"@en . "Jeff-Rosso-01.jpg"@en . "250"^^ . . "Jeffrey Theodore \"Jeff\" Rosso is the guidance counselor at William McKinley High School. He is portrayed by Dave 'Gruber' Allen."@en . "Dave Allen"@en . "Occupation"@en . . "First appearance"@en . . "Gender"@en . "Jeff Rosso"@en . "\"Pilot\""@en . "Jeff Rosso"@en .