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:
Sara Botsford
Table title:
Film
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 > 1981 </td><td colspan=1 rowspan=1 > By Design </td><td colspan=1 rowspan=1 > Angie </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Murder by Phone </td><td colspan=1 rowspan=1 > Ridley Taylor </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Deadly Eyes </td><td colspan=1 rowspan=1 > Kelly Leonard </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Still of the Night </td><td colspan=1 rowspan=1 > Gail Phillips </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Legal Eagles </td><td colspan=1 rowspan=1 > Barbara </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Jumpin' Jack Flash </td><td colspan=1 rowspan=1 > Sarah Billings </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > The Gunrunner </td><td colspan=1 rowspan=1 > Maude </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2004 </td><td class="highlighted"  colspan=1 rowspan=1 > Tremors 4: The Legend Begins </td><td colspan=1 rowspan=1 > Christine Lord </td><td colspan=1 rowspan=1 > Video </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004 </td><td colspan=1 rowspan=1 > Eulogy </td><td colspan=1 rowspan=1 > Mrs. Carmichael </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > Anne: Journey to Green Gables </td><td colspan=1 rowspan=1 > Mrs. Barry / Frau Schuller (voice) </td><td colspan=1 rowspan=1 > Video </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2005 </td><td class="highlighted"  colspan=1 rowspan=1 > The Fog </td><td class="highlighted"  colspan=1 rowspan=1 > Kathy Williams </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2008 </td><td colspan=1 rowspan=1 > Broken Windows </td><td colspan=1 rowspan=1 > Mary </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > Matty Hanson and the Invisibility Ray </td><td colspan=1 rowspan=1 > Dr. Angelina Haas </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > River </td><td colspan=1 rowspan=1 > Dr. Stephanie Novella </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > He Said </td><td colspan=1 rowspan=1 > Higard </td><td colspan=1 rowspan=1 > Short </td></tr>
</table>
Question:
In the 1981 book by Design what was the main role?
Answer:
Sara Botsford played a role in Tremors 4: The Legend Begins in 2004, and Kathy Williams in The Fog in 2005.