This is a crossover of 2 universal studios films and also cartoon network tv series
Cast in this fanon:
Ducky
Petrie
Spike
Ruby
Alvin
Simon
Theodore
Littlefoot
Brittany
Jeanette
Eleanor
Chomper
Dave Seville
Miss Miller
Mama swimmer
Mama flyer
Granny longneck
Grampy longneck
Topsy
Uncle Harry
Chomper's parents
Plated sharptooth and klaus and Claudia