On Thursday, the latest episode of Training Day aired on CBS. The show opened with a tribute to the late Bill Paxton, who stars in the show as Detective Frank Rourke.

Paxton passed away unexpectedly due to complications from heart surgery on February 25, according to a statement from his family. He was 61 years old. The tribute touchingly showed the words "in loving memory of our friend and colleague Bill Paxton 1955-2017" alongside his picture.

Bill Paxton's impressive career in film and television

Paxton, whose acting career began in the 1970s, accumulated over 90 acting credits and appeared in many well-known movies.

A few of his best-known performances include "Aliens," "True Lies," "Apollo 13," "Twister" and "Titanic." From 2006-11, he played the lead role in the HBO series "Big Love," and he starred in the first season of ABC's "Agents of S.H.I.E.L.D." in 2014.

Paxton was also known for his work in the western genre. He played Morgan Earp in the 1993 film "Tombstone," and later portrayed Frank James in the 1995 movie "Frank & Jesse." More recently, Paxton starred in two different miniseries on the History Channel, playing patriarch Randall McCoy in "The Hatfields and McCoys" in 2012 and General Sam Houston in "Texas Rising" in 2015. The official Twitter account for "Training Day" also tweeted their tribute to Paxton, adding in a caption that he will forever be remembered.

A well-loved actor

Although Paxton was known for being a talented and versatile actor, he was also known for his presence away from the screen. Many are remembering him as a well-loved and terrific person.

Famed director James Cameron, who worked with Paxton on many projects, referred to him as both a "wonderful man" and a "great human" in a statement sent to Vanity Fair.

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Former co-stars such as Rob Lowe, Tom Hanks and Arnold Schwarzenegger have paid tribute to Paxton on Twitter as well. Lowe, who played Jesse James in "Frank & Jesse," also remembered Paxton as his "closest friend in the industry" in an essay published by The Hollywood Reporter.

'Training Day'

According to Deadline, production on "Training Day," a 13-episode CBS series, was completed late last year.

It is not anticipated that a second season will occur. The series is a follow-up to the 2001 film of the same name, starring Denzel Washington and Ethan Hawke. The show picks up 15 years after the conclusion of the film.

"Training Day," which premiered on February 2, airs Thursdays at 10:00 p.m. EST on CBS. Thursday night's episode was the first since Paxton sadly passed away.