Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Don Stewart (actor)
Table title:
Filmography
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Role </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > 1942 </td><td colspan=1 rowspan=1 > Where Trails End </td><td colspan=1 rowspan=1 > Donny Bedford </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1943 </td><td colspan=1 rowspan=1 > Wild Horse Stampede </td><td colspan=1 rowspan=1 > Donny Wallace </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1944 </td><td colspan=1 rowspan=1 > Arizona Whirlwind </td><td colspan=1 rowspan=1 > Donny Davis </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1981 </td><td colspan=1 rowspan=1 > Carnival Magic </td><td colspan=1 rowspan=1 > Markov </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1983 </td><td colspan=1 rowspan=1 > Lost </td><td colspan=1 rowspan=1 > Jeff Morrison </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > American Ninja </td><td colspan=1 rowspan=1 > Victor Ortega </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1990 </td><td colspan=1 rowspan=1 > Future Zone </td><td colspan=1 rowspan=1 > Richards </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1991 </td><td class="highlighted"  colspan=1 rowspan=1 > Rover Dangerfield </td><td class="highlighted"  colspan=1 rowspan=1 > Clem </td><td class="highlighted"  colspan=1 rowspan=1 > Voice </td></tr>
<tr> <td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > Listen </td><td colspan=1 rowspan=1 > Reporter </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Has Don Stewart ever been a voice actor?
Answer:
Don Stewart provided the voice of Clem in the 1991 film Rover Dangerfield.