Scott will play a new role that is folded into the series to fill the shoes of the departed Riggs as Roger Murtaugh's (Damon Wayans) partner.
The good news first is that Lethal Weapon is definitely coming back for a third season.
Studio Warner Bros. issued a statement declaring Crawford's contract was not picked up for the third season.
According to Deadline, Scott is rumored to be playing Riggs' brother, so the series could continue using the "Riggs" name.
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The bad news is that the show will be returning without Clayne Crawford who played the role of Martin Riggs.
Former Lethal Weapon star Clayne Crawford has broken his silence after being fired from the Fox and Warner Bros. "Matt Miller, his incredible team and everyone at Warner Bros. have been tremendous partners, and we're thrilled to bring this show back for another season".
The series' ratings were enough to score a renewal, however the behavior of Clayne Crawford put the show in jeopardy. The cast includes Wayans, Keesha Sharp, Kevin Rahm, Jordana Brewster, Johnathan Fernandez, Dante Brown, Chandler Kinney, Michelle Mitchenor and now Scott.
The action drama is executive produced by Matt Miller, Dan Lin, Jennifer Gwartz and McG.
Instead, Fox has hired American Pie and Road Trip actor Seann William Scott in his first series-regular TV role to join the show. He also starred in "Goon 2: Last of the Enforcers" and "Just Before I Go". Lethal Weapon is a strong performer domestically and internationally - the film franchise is a global smash having grossed hundreds of millions of dollars - and the network was willing to work with the studio to find a way to move forward. Television producing in association with Lin Pictures and Good Session Productions. The pilot was written by Miller and directed by McG. I wasn't that jazzed about Lethal Weapon 3 or 4, so the prospect of a procedural reboot wasn't doing much for me.