Movies:
- In the Line of Duty: Blaze of Glory (1995): Steffen portrayed the character of Detective Karen Harding in this action movie starring Rutger Hauer.
- The Long Kiss Goodnight (1996): Steffen had a supporting role as the character of Tammy in this action thriller film starring Geena Davis and Samuel L. Jackson.
- Double Team (1997): Steffen appeared as the character of Karla Fry in this action movie starring Jean-Claude Van Damme and Dennis Rodman.
- The Assignment (1997): Steffen portrayed the character of Sonia Thorne in this action-drama film starring Ben Kingsley and Aidan Quinn.
- Lethal Weapon 4 (1998): Steffen made a brief appearance as the character of Sharon in this action-comedy film starring Mel Gibson and Danny Glover.
Television:
- The Commish (1995): Steffen had a recurring role as Detective Stacy Reynolds in this police drama series.
- Diagnosis: Murder (1995): Steffen guest-starred in the episode titled "Physician, Heal Thyself" as the character of Sarah Collins.
- Silk Stalkings (1996): Steffen appeared in the episode titled "Love and Death" as the character of Jessica Shaw.
- The Pretender (1997): Steffen guest-starred in the episode titled "Crash" as the character of Lt. Jessica Barnes.
- The Outer Limits (1999): Steffen portrayed the character of Dr. Laura Gaines in the episode titled "Relativity."
In addition to the above projects, Sirry Steffen has made appearances in various other movies and television series throughout her career, often in supporting or guest-starring roles.