CSI: Vegas season 2 has reeled in Lex Medlin and Ariana Guerra to soften a number of significant cast exits.

It's been announced that the Mayans MC (Medlin played Randall) and Helstrom duo (Guerra was Gabriella Rosetti) are onboard as newcomers Beau and Serena, according to Deadline.

Jay Lee, who recurred in the opening season as Chris Park, has been promoted to series regular as well.

lex medlin
Paul Archuleta//Getty Images

Related: CSI: Vegas star William Petersen briefly hospitalised due to exhaustion on set

As for what we know of Medlin's character so far, Beau (who's a husband and a dad of four kids) spent the past 20 years as one of Dow Chemical's best research scientists and has decided to put his efforts to better use following the pandemic.

"He took a massive pay cut, followed his heart and graduated at the top of his class at the CSI Academy. He is now the most overqualified CSI Level 1 of all time," his character bio reads.

We also know that this newbie is a True Crime trivia fan and isn't exactly used to having someone to answer to in the workplace, which could spell trouble going forward.

ariana guerra
JC Olivera//Getty Images


Related: CSI: Vegas set to bring back original character after cast exits

Meanwhile, Guerra – who you may know from her work in Netflix's Raising Dion and Promised Land – steps into the shoes of a "hard-boiled" pocket rocket.

As an unfiltered "tough-skinned cynic", not to mention the daughter of cops and a sibling to doctors, Serena is, according to her character bio, "not content to let science lead the way without some saucy commentary and tough questions".

We'd better watch out for these two.

CSI: Vegas airs on CBS in the US. No UK broadcaster has been announced yet.

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Dan Seddon

Reporter, Digital Spy 

Dan is a freelance entertainment journalist. Beginning his writing career in 2014, Dan's work first graced the pages of cult publications Starburst magazine and Little White Lies before moving onto Total Film, Digital Spy, NME and Yahoo Entertainment

In the film and TV universe, he kneels at the altar of Jim Carrey, Daniel Plainview, Mike Ehrmantraut and Paulie Walnuts.