1977

• The Space Sentinels TV Series (animation director) ... aka The Young Sentinels (USA)

1968

• "The Archie Show" TV Series (associate director)
• "The Batman/Superman Hour" TV Series (associate director)

1967

• The Bear That Wasn't
• Advance and Be Mechanized
• Cannery Rodent
• Cat and Dupli-cat
• Guided Mouse-ille ... aka Guided Mouse-ille or Science on a Wet Afternoon
• The Mouse from H.U.N.G.E.R.
• O-Solar-Meow
• Purr-Chance to Dream
• Rock 'n' Rodent
• Surf-Bored Cat

1966

• How the Grinch Stole Christmas! (TV) ... aka Dr. Seuss' How the Grinch Stole Christmas! (USA: complete title)
• The A-Tom-inable Snowman
• Catty-Cornered
• Filet Meow
• Jerry, Jerry, Quite Contrary
• Love Me, Love My Mouse
• Puss 'n' Boats

1965

• The Dot and the Line ... aka The Dot and the Line: A Romance in Lower Mathematics
• The Man from Button Willow
• Ah, Sweet Mouse-Story of Life
• Bad Day at Cat Rock
• The Brothers Carry-Mouse-Off
• The Cat's Me-Ouch
• Duel Personality
• Haunted Mouse
• I'm Just Wild About Jerry
• Jerry-Go-Round
• Of Feline Bondage
• Tom-ic Energy
• The Year of the Mouse ... aka Tom Thump
• A Taste of Catnip (marking Towsley's last animations of Sylvster)

1964

• The Cat Above and the Mouse Below
• Is There a Doctor in the Mouse?
• Much Ado About Mousing
• Snowbody Loves Me
• The Unshrinkable Jerry Mouse

1947

• Wide Open Spaces
• Crazy with the Heat
• Donald's Dilemma
• It's a Grand Old Nag (supervising animator)

1946

• Dumb Bell of the Yukon
• Wet Paint
• Donald's Double Trouble
• Sleepy Time Donald

1938

• Donald's Golf Game