Wyo. Stat. § 27-4-104

suit for wages; generally.

     (a) Whenever an employee quits service or is discharged,
the employee shall be paid whatever wages are due him in lawful
money of the United States of America, or by check or draft
which can be cashed at a bank, no later than the employer's
usual practice on regularly scheduled payroll dates or at a time
specified under the terms of a collective bargaining agreement
between the employer and the employee. The employer may offset
from any monies due the employee as wages, any sums due the
employer from the employee which have been incurred by the
employee during his employment. This section does not apply to
the earnings of a sales agent employed on a commission basis and
having custody of accounts, money or goods of his principal
where the net amount due the agent may not be determinable
except after an audit or verification of sales, accounts, funds
or stocks.

     (b) Whenever an employee who has quit, has been discharged
from service, or because of action taken by the employer is
prevented from working has cause to bring suit for wages earned
and due, and shall establish in court the amount which is justly
due, the court shall allow to the plaintiff interest on the past
due wages at the rate of eighteen percent (18%) per annum from
the date of discharge or termination or from the date when
unpaid wages are required to be paid as specified in this act,
together with a reasonable attorney fee and all costs of suit.
Prosecution of a civil action to recover unpaid wages does not
preclude prosecution under W.S. 27-4-105.