Known For
The Land Before Time
An American Tail
The Land Before Time II: The Great Valley Adventure
The Land Before Time III: The Time of the Great Giving
The Land Before Time IV: Journey Through the Mists
The Land Before Time V: The Mysterious Island
The Land Before Time VI: The Secret of Saurus Rock
Sesame Street
The Land Before Time VII: The Stone of Cold Fire
The Land Before Time VIII: The Big Freeze
The Land Before Time X: The Great Longneck Migration
The Land Before Time IX: Journey to Big Water
Filmography
Sesame Street: 50 Years and Counting
Movie · Writer
The Land Before Time XIV: Journey of the Brave
Movie · Characters
Sesame Street: Elmo's World: All About Faces
Movie · Writer
The Land Before Time XIII: The Wisdom of Friends
Movie · Characters
The Land Before Time XII: The Great Day of the Flyers
Movie · Characters
A Sesame Street Christmas Carol
Movie · Writer
The Land Before Time XI: Invasion of the Tinysauruses
Movie · Characters
Sesame Street: Elmo's World: Families, Mail & Bath Time!
Movie · Writer
Sesame Street: Elmo's World: The Street We Live On!
Movie · Writer
Sesame Street: A Celebration of Me, Grover
Movie · Writer
The Land Before Time X: The Great Longneck Migration
Movie · Characters
Sesame Street: Elmo's World: Head to Toe with Elmo!
Movie · Writer
Sesame Street: Elmo's World: The Great Outdoors!
Movie · Writer
The Land Before Time IX: Journey to Big Water
Movie · Characters
Elmo's World: Family Feature
Movie · Writer
The Land Before Time VIII: The Big Freeze
Movie · Characters
The Land Before Time VII: The Stone of Cold Fire
Movie · Characters
CinderElmo
Movie · Writer
The Land Before Time VI: The Secret of Saurus Rock
Movie · Characters
The Best of Kermit on Sesame Street
Movie · Writer
The Land Before Time V: The Mysterious Island
Movie · Characters
Sesame Street: Quiet Time
Movie · Writer
Sesame Street: Sing Yourself Sillier at the Movies
Movie · Writer
The Land Before Time IV: Journey Through the Mists
Movie · Characters
Sesame Street: Elmo Saves Christmas
Movie · Writer
The Land Before Time III: The Time of the Great Giving
Movie · Characters
The Land Before Time II: The Great Valley Adventure
Movie · Characters
Getting Ready to Read
Movie · Lyricist, Writer
The Tale of Peter Rabbit
Movie · Writer
Sesame Street: Rock & Roll!
Movie · Writer
Sesame Street Home Video Visits the Hospital
Movie · Writer
Sesame Street Home Video Visits the Firehouse
Movie · Writer
Sesame Street: Sing Yourself Silly!
Movie · Writer
Sesame Street: Dance Along!
Movie · Writer
Sing! Sesame Street Remembers Joe Raposo and His Music
Movie · Writer
Sesame Street: 20 Years & Still Counting! 1969-1989
Movie · Writer
The Land Before Time
Movie · Story
Sesame Street: Put Down the Duckie
Movie · Writer
An American Tail
Movie · Story, Screenplay
Follow That Bird
Movie · Writer
Don't Eat the Pictures: Sesame Street at the Metropolitan Museum of Art
Movie · Writer
Ball Four
TV · Writer · 1 ep
When Things Were Rotten
TV · Writer · 1 ep
Sesame Street
TV · Writer · 3 eps