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:
William Fichtner
Table title:
Video games
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 > 2002 </td><td class="highlighted"  colspan=1 rowspan=1 > Grand Theft Auto: Vice City </td><td class="highlighted"  colspan=1 rowspan=2 > Ken Rosenberg </td><td class="highlighted"  colspan=1 rowspan=2 > Credited as Bill Fichtner </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004 </td><td class="highlighted"  colspan=1 rowspan=1 > Grand Theft Auto: San Andreas </td></tr>
<tr> <td colspan=1 rowspan=1 > 2008 </td><td colspan=1 rowspan=1 > Turok </td><td colspan=1 rowspan=1 > Logan </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > Call of Duty: Modern Warfare 3 </td><td colspan=1 rowspan=1 > Master Sergeant Sandman </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2012 </td><td colspan=1 rowspan=1 > Infex </td><td colspan=1 rowspan=1 > The Administrator </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 > Disney Infinity </td><td colspan=1 rowspan=1 > Butch Cavendish </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > Teenage Mutant Ninja Turtles </td><td colspan=1 rowspan=1 > The Shredder </td><td colspan=1 rowspan=1 > Nintendo 3DS version </td></tr>
</table>
Question:
What's William Fichtner's contribution to the Grand Theft Auto games?
Answer:
William Fichtner, credited as Bill Fichtner, played the role of Ken Rosenberg in the video games Grand Theft Auto: Vice City and Grand Theft Auto: San Andreas.