Context: Tim Allen voiced the character in the Toy Story film series and the Buzz Lightyear movie, while Patrick Warburton provided Buzz's voice for the TV series, and Pat Fraley voiced him for the video games and the attractions in Disney Parks.

Question: the voice of buzz lightyear in toy story?
Steam of consciousness below:
The relevant information to answer the above question is: Tim Allen voiced the character in the Toy Story film series and the Buzz Lightyear movie, while Patrick Warburton provided Buzz's voice for the TV series, and Pat Fraley voiced him for the video games and the attractions in Disney Parks.
So, the answer is Tim Allen.