Len Janson

Wacky and Packy

2004 · Writer

Sonic le Rebelle

1999 · Writer

Dumb and Dumber

1995 · Writer

Sonic the Hedgehog

1993 · Writer

P.J.'s Unfunnybunny Christmas

1993 · Teleplay

Les Tiny Toons

1990 · Writer

P.J. Funnybunny

1989 · Writer

Little Wizards

1987 · Creator

S.O.S. Fantômes

1986 · Writer

Solarman

1986 · Original Story

Condor

1986 · Writer

Going Bananas

1984 · Screenplay

Going Bananas

1984 · Creator

Les Biskitts

1983 · Writer

Benji, Zax & the Alien Prince

1983 · Editor

Benji, Zax & the Alien Prince

1983 · Writer

My Smurfy Valentine

1983 · Writer

Le Miraculeux Noël Des Schtroumpfs

1982 · Teleplay

The Smurfs Springtime Special

1982 · Teleplay

Les Schtroumpfs

1981 · Writer

The Flintstones: Wind-Up Wilma

1981 · Writer

The New Fred and Barney Show

1979 · Story

The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II

1979 · Writer

La croisière s'amuse

1977 · Writer

The Secrets of Isis

1975 · Writer

The Haunted Heist

1974 · Writer

Daffy Duck and Porky Pig Meet the Groovie Goolies

1972 · Writer

Sergeant Swell of the Mounties

1972 · Director

Captain Mom

1971

Captain Mom

1971 · Director

Les Croque-Monstres

1970 · Writer

Blaze Glory

1969 · The Pug-Nosed Kid

Blaze Glory

1969 · Director

Stop Look and Listen

1967 · Sunglasses

Stop Look and Listen

1967 · Director

Stop Look and Listen

1967 · Writer

Vicious Cycles

1967 · Leader of the Vicious Cycles

Vicious Cycles

1967 · Writer

Vicious Cycles

1967 · Producer

Vicious Cycles

1967 · Director

Chasse au Bip-Bip, mode d'emploi

1965 · Story