Question: Who was the voice of shadow in homeward bound?
Disambiguated questions and answers: question: Who was the voice of shadow in homeward bound: The incredible journey?
Who was the voice of shadow in homeward bound: Lost in San Francisco?
answer: Ameche
Don Ameche
Dominic Felix Amici
Waite
Ralph Waite
Natural Questions answer: Don Ameche (from the Wikipedia article "Homeward Bound: The Incredible Journey")