Len Janson
Writing
- Born
- November 18, 1937 (age 88) · Los Angeles, California, USA
Known for
The Smurfs Christmas Special
December 13, 1982
My Smurfy Valentine
February 13, 1983
The Smurfs Springtime Special
April 7, 1982
The Flintstones: Wind-Up Wilma
October 4, 1981
Stop Look and Listen
January 1, 1967
Boulder Wham!
October 8, 1965
Condor
August 10, 1986
Daffy Duck and Porky Pig Meet the Groovie Goolies
December 16, 1972
Solarman
October 23, 1986
The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II
October 12, 1979
Vicious Cycles
December 31, 1967
Blaze Glory
December 21, 1969
Behind the camera18
- 2004Wacky and Packy Writer
- 1993P.J.'s Unfunnybunny Christmas Teleplay
- 1989P.J. Funnybunny Writer
- 1986Solarman Original Story
- 1986Condor Writer
- 1983My Smurfy Valentine Writer
- 1982The Smurfs Christmas Special Teleplay
- 1982The Smurfs Springtime Special Teleplay
- 1981The Flintstones: Wind-Up Wilma Writer
- 1979The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II