<P> Yogi is living in social confinement, but tries to take advantage of his situation . People come to the Park to have picnics and bring with them picnic baskets . Yogi resorts to theft, stealing the picnic baskets, and enjoying their contents . Yogi's habitual criminality and preoccupation with his own nourishment and survival are not portrayed as negative traits . He is depicted as a sympathetic protagonist . </P> <P> Yogi never actually challenges the social hierarchy of the Park, does not seriously challenge the authority of the ranger over him, and does not seek more autonomy in his life . Lehman contrasts Yogi's acceptance of the way things are with the activists of the series' contemporary Civil Rights Movement who did challenge the way things were . They wanted to move beyond their designated place and integrate into wider society . The press and politicians of the time were portraying these activists as radicals and opposed their efforts . </P> <P> From the time of the character's debut until 1988, Yogi was voiced by voice actor Daws Butler . Butler died in 1988; his last performance as Yogi was in the television film Yogi and the Invasion of the Space Bears . </P> <P> After Butler's death, Greg Burson stepped in to perform the role (Butler had taught Burson personally how to voice Yogi as well as his other characters). Greg Burson died in 2008 . </P>

Who did the original voice of yogi bear