Mohamad Zain bin Mohd Saidin (born February 23, 1984)^[1] is a Malaysian actor and a model. He is well known as the character Henry Middleton on the Astro TVIQ series Oh My English!

Zain has been involved in the acting world for a long time, though it is only in recent years that he had taken on more prominent roles in various productions. He has acted in various dramas, amongst others Kiah Pekasam, Awan Dania 3 and Gemersik Kalbu.

In 2012, he joined the cast of the series Oh My English! (a language education comedy akin to Extr@) on Astro TVIQ, taking on the role of the main character Henry Middleton, the half-British English teacher who hails from the United Kingdom.

Zain was born on 23 February 1984 and comes from Bangsar, Kuala Lumpur. He is the youngest brother of four siblings and has a mixed Malay-English parentage.^[2] His sister Sasha Saidin is also an actress and singer for already defunct girls band in the 90's, Elite.

Prior to joining the entertainment industry in his mid-20s, Zain worked as a personal trainer.^[3]

Zain married actress Rozita Che Wan on 13 December 2013. The couple have a daughter named Aaisyah Dhia Rana who was born on 1 November 2014.