Tom Hanks
Tom Hanks Mario Anzuoni / Reuters

Actor Tom Hanks expressed sadness Thursday over the death of his beloved dog, Monty.

Monty. Deep brown eyes, noble demeanor, finest dog ever. A sad day. Goodbye Big Boy. Hanx, the actor tweeted, including a link to a picture of his dog on the site Who Say. The 55-year-old actor does not post frequently on Twitter and his grief seemed sincere.

Fans took to Twitter to express their condolences to the Extremely Loud & Incredibly Close actor.

[Oh my God,] I'm so sorry. I lost my first dog last May and was one of the saddest days of my life. He will watch you now from dog's heaven, one fan, Natalia Crespo, wrote on Twitter.

Another fan reached out to say: Sorry for your loss, Tom, you had a fine looking dog.

Hanks has gained acclaim as an American actor, writer, producer and director. He has worked in many successful films such as Forrest Gump, Apollo 13, Saving Private Ryan, You've Got Mail, Cast Away and many others. He has won two Academy Awards for Best Actor, one for his role in Philadelphia and the other for his part in Forrest Gump.

Hanks' newest film Extremely Loud & Incredibly Closed, based off the Jonathan Safran Foer novel, is currently playing in theaters. It has received mixed reviews from critics and fans.

To see a picture of Hanks' beloved dog, it can be found here.