Back to the Future/Rugrats

Tommy's Grandparents

 * Marty McFly as Tommy Pickles
 * Einstein as Chuckie Finster
 * Jennifer Parker as Kimi Finster
 * George McFly as Boris Pickles
 * Lorraine McFly as Minka Pickles
 * Doc Emmett Brown as Grandpa Lou Pickles
 * Biff as Timmy McNutly
 * and more

Tommy's Parents

 * Marty McFly as Tommy Pickles
 * Einstein as Chuckie Finster
 * Jennifer Parker as Kimi Finster
 * George McFly as Stu Pickles
 * Lorraine McFly as Didi Pickles
 * Doc Emmett Brown as Grandpa Lou Pickles
 * Biff as Timmy McNutly
 * and more