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:
Alexander Vlahos
Table title:
Filmography
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Producer </th><th colspan=1 rowspan=1 > Role </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th colspan=1 rowspan=1 > Gallifrey </th><td colspan=1 rowspan=1 > 2011 </td><td class="highlighted"  colspan=1 rowspan=7 > Big Finish Productions </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Season 4 </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > The Confessions of Dorian Gray </th><td class="highlighted"  colspan=1 rowspan=1 > 2012-2016 </td><td class="highlighted"  colspan=1 rowspan=1 > Dorian Gray </td><td colspan=1 rowspan=1 > Seasons 1-5 </td></tr>
<tr> <th colspan=1 rowspan=2 > Bernice Summerfield </th><td colspan=1 rowspan=1 > 2012 </td><td colspan=1 rowspan=1 > Gray </td><td colspan=1 rowspan=1 > Box set 3 "Legion" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Writer of "HMS Surprise" from Box set 4 "New Frontiers" </td></tr>
<tr> <th colspan=1 rowspan=1 > The Diary of River Song </th><td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > Bertie Potts </td><td colspan=1 rowspan=1 > Season 1 </td></tr>
<tr> <th colspan=1 rowspan=1 > Doctor Who - The Lives of Captain Jack </th><td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > The Stranger </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > Hamlet </th><td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > Hamlet </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What role did Alexander Vlahos play in he Confessions of Dorian Gray? 
Answer:
From 2012 to 2016, Alexander Vlahos played the role of Dorian Gray in Big Finish Productions' The Confessions of Dorian Gray.