Digital Spy reported that Neil Pearson will play the new school chief in series 10 next year.
The Drop T he Dead Donkey actor had already been announced as new staff member Vaughn Fitzgerald in the next series of the BBC One drama.
The news was revealed online after a fan visited the set in Greenock, Scotland.
Pictures posted on Inverclyde Now show a sign saying: "Head Teacher: Vaughn Fitzgerald."
It was announced last month that Nicola Stephenson and Neil had been signed up to play teaching duo Vaughn and Allie Westbrook.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? firstname.lastname@example.org
Your intense personal charisma attracts lots of romantic attention. If you're single, you will have your choice of several admirers. Go with the person who recognises and values your creative side. Too often, people write you off as a worker bee. They don't realise what a vivid imagination you have. Are you in a relationship? You and your amour may enjoy a passionate encounter. Satisfy your sensual urges. They are a powerful manifestation of your desire for physical closeness.More