1 Exhibit 24.1 INDEPENDENT AUDITOR'S CONSENT We consent to the incorporation by reference in Registration Statements No. 33-57078 and No. 333-38849 of On Assignment, Inc. and subsidiaries on Form S-8 of our report dated January 23, 1998, with respect to the consolidated financial statements and financial statements schedule of On Assignment, Inc. appearing in this Annual Report on Form 10-K of On Assignment, Inc. for the year ended December 31, 1997. /s/ Deloitte & Touche LLP Deloitte & Touche LLP March 27, 1998 Los Angeles, California 38