Malloy has well over 100 credits in his 20 years of acting, including featured roles in Tanner '88, Election, The Great Gatsby, Dr T and the Women, Hamlet, Finding Forrester, Providence, The Mind of the Married Man, Tanner on Tanner, Six Feet Under, The Pleasure of Your Company, The Unit, Choke, Hawthorne, The Bounty Hunter and Morning Glory.
Malloy is also known as an avid golfer, sporting a 5 handicap.
- Appeared with Michael Gladis on Extant
- Appeared with Melanie Lynskey on Togetherness
- Appeared with Kai Lennox and James LeGros in Night Moves
- Appeared with Judy Greer in Jeff, Who Lives at Home
- Appeared with Jodi Long on Law & Order: LA
- Appeared with Robin Tunney on The Mentalist.
- Appeared with Anne Elizabeth Ramsay on Hawthorne
- Appeared with Joel Grey in Choke
- Appeared with Joshua Malina and Janel Moloney on The West Wing
- Appeared with Candice Bergen on Boston Legal
- Appeared with Cynthia Nixon on Tanner '88 and Tanner on Tanner
- Appeared with Jolene Blalock and Linda Park on Enterprise
- Appeared with Michael Nouri in Finding Forrester
- Appeared with Lisa Edelstein on Ally McBeal
- Appeared with Mark Harelik in Election