Don Towsley was an animator.
A Charlie Brown Celebration (1981)
Mickey Mouse Disco
The Space Sentinels TV series (animation director) ... a.k.a. The Young Sentinels (USA)
Fraidy Cat
Journey Back to Oz (sequence director)
The New Adventures of Gilligan (director)
U.S. of Archie (director)
Pink on the Cob (additional animator: animation)
Carte Blanched (additional animator: animation)
"The Archie Show" TV series (associate director)
"The Batman/Superman Hour" TV series (associate director)
The Bear That Wasn't
Advance and Be Mechanized
Cannery Rodent
Cat and Dupli-cat
Guided Mouse-ille ... a.k.a. 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
Shutter Bugged Cat (title animation - uncredited)
How the Grinch Stole Christmas! (TV) ... a.k.a. 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
Matinee Mouse (title animation - uncredited)
The Dot and the Line ... a.k.a. The Dot and the Line: A Romance in Lower Mathematics (supervising animator)
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 ... a.k.a. Tom Thump
A Taste of Catnip (additional animation - uncredited) (marking Towsley's last animations of Sylvster)
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
Penthouse Mouse (additional/title animation - uncredited)
The Yogi Bear Show TV series
Talking of Tomorrow
Drip Dippy Donald
Wide Open Spaces
Crazy with the Heat
Donald's Dilemma
It's a Grand Old Nag (supervising animator)
Dumb Bell of the Yukon
Wet Paint
Donald's Double Trouble
Sleepy Time Donald
Old Sequoia
Cured Duck
Donald's Crime
The Plastics Inventor
Saps in Chaps
Bambi (additional animation - uncredited)
Dumbo
Fantasia (animation supervisor) (segment "The Pastoral Symphony")
Pinocchio
Donald's Cousin Gus
Donald's Golf Game
Moving Day
The Cookie Carnival
Mickey's Service Station
Two-Gun Mickey