Grampa vs. Sexual Inadequacy/Appearances

Characters

 * Homer Simpson
 * Marge Simpson
 * Bart Simpson
 * Lisa Simpson
 * Maggie Simpson
 * Abraham Simpson
 * Mona Simpson (flashback)
 * Barney Gumble
 * Seymour Skinner
 * Milhouse Van Houten
 * Lewis
 * Richard
 * Janey Powell