This is no joke: Jason Priestley and 'Arrested Development' star Tony Hale are heading to USA Network's 'Psych.'

According to Entertainment Weekly, 'Beverly Hills, 90210' veteran Priestley will play a biker con man who attempts to pull off a job at the same resort where Shawn (James Roday) is vacationing.

Hale will play an imports and exports businessman who interacts with Shawn and Juliet (Maggie Lawson) while they're on a romantic weekend away.

In other casting news ...

Producers of CSI: Miami have found a new coroner. Starting this season, The 4400's Megalyn Echikunwoke will fill the role vacated by Khandi Alexander. Alexander parted ways with the series after six years due to her alleged unhappiness with the show *cough* David Caruso *cough.*

There isn't much known about Echikunwoke's character, other than she'll be the new coroner. For instance, her affinity for the phrase "aw sugar" and her feelings on whether or not the victims on the table "left this world too soon" are, at this point, a mystery.