Kasey Mahaffy

Actor 2000–2020 (20 year career)

7.0 avg rating

Highest Rated

9-1-1

2018 · as Lyle

8.2

Grey's Anatomy

2005 · as Billy Best

8.2

Bones

2005 · as Leland Frankel

8.2

Known For

Film

Ocean's Thirteen

Security Technician

Film

Grey's Anatomy

Billy Best

Film

Bones

Leland Frankel

Film

9-1-1

Lyle

Film

Modern Family

Dom

Film

Castle

Lance Newman

Film

NCIS

Dr. Patton Hartgrave

Film

CSI: Crime Scene Investigation

Ian Doyle

Filmography

Acting (23)

Movies (4)

Yours Mine Ours

2020

4.3

Room Service

2018

as Bill

Something New

2017

as Kevin

3.0

Ocean's Thirteen

2007

as Security Technician

6.7

Television (19)

Truth Be Told

as Silas

Sydney to the Max

as Terrance

9-1-1

as Lyle

Grace and Frankie

as Brett

Bad Teacher

as Mark Cuban's Assistant

Getting On

as Rick Joy

Franklin & Bash

as Freck

Law & Order: LA

as Kern

Modern Family

as Dom

Castle

as Lance Newman

Grey's Anatomy

as Billy Best

Bones

as Leland Frankel

Medium

as Waiter

Veronica Mars

as Russian Lit Student

Joey

as Red Haired Guy

NCIS

as Dr. Patton Hartgrave

7.6

Crossing Jordan

2001

as Second Uni

7.2

CSI: Crime Scene Investigation

as Ian Doyle

Girlfriends

as Waiter