Beethoven: Kris
Benji (PETTICOAT JUNCTION, the "Benji" movies): Higgins
Clarence ("Clarence the Cross-Eyed Lion," DAKTARI): Freddie
Cleo (THE PEOPLE'S CHOICE): Bernadette
Daisy (The "Blondie" movie series): Spooks
Flicka (MY FRIEND FLICKA): Wahama
Flipper: Suzy/Cathy
Francis the Talking Mule: Molly
Fury: Highland Dale (official name; nicknamed Beauty)
Gentle Ben: Bruno
Jerry Lee ("K-9"): Rando
Lassie ("Lassie Come Home"): Pal
Mister Ed: Bamboo Harvester
The Pie ("National Velvet"): King Charles
Quincy (COACH): Isaac
Rin Tin Tin (THE ADVENTURES OF RIN TIN TIN): Golden Boy ("J.R.")
Silver (THE LONE RANGER): Traveler
Toto ("The Wizard of Oz"): Terry
Trigger (Roy Rogers' horse): Golden Cloud (originally)
Willy ("Free Willy"): Keiko
Wishbone: Soccer
Wolf (DR. QUINN, MEDICINE WOMAN): Cody (actually a Malamute dog)
Ben (LIFE AND TIMES OF GRIZZLY ADAMS): Bozo
Cheetah (Tarzan's chimp): Jiggs
Comet (ADVENTURES OF BRISCO COUNTY JR.): Copper
Dreyfuss (EMPTY NEST): Bear/Julio
Duke (THE BEVERLY HILLBILLIES); Stretch
Eddie (FRASIER): Moose
Lancelot Link (LANCELOT LINK, SECRET CHIMP): Tonga
Morris the Cat: Lucky
Old Yeller: Spike
Sassy ("Homeward Bound"): Tiki
Chance ("Homeward Bound"): Rattler
Shadow ("Homeward Bound"): Ben/Molly/Tyler/Montgomery
Spike ("Ace Ventura"): Binx (a monkey)
"D.C." ("That Darn Cat"): Syn
Fluffy ("Fluffy"): Zamba (a lion)

(By the way, the dog Tiger on THE BRADY BUNCH, a mixed Hungarian sheepdog, was played by six dogs over the years.)