The third season of Numbers, an American television series, premiered on September 22, 2006 with the episode "Spree" and had its season finale "The Janus List" on May 18, 2007. Charlie and Amita intensify their relationship, as do Larry and Megan. Amita has troubles adjusting in her new role as a CalSci professor, and Larry announces his leave of absence—he will be on the space station for six months, which greatly distresses Charlie. Dr. Mildred Finch, the newly appointed Chair of the CalSci Physics, Mathematics, and Astronomy Division, initially troubles Charlie and his colleagues, as Alan dates her. Don dates Agent Liz Warner, questions his ethics and self-worth, and receives counseling. Charlie sees Don's therapist and the two understand one another more. Alan engages in some FBI consulting with his knowledge of engineering, and Larry returns from the space station, although disillusioned. The finale wraps up with a revelation that shakes the whole team.

Cast

Main

Recurring

Guest

• David Gallagher as Buck Winters • Kim Dickens as Crystal Hoyle • Benito Martinez as Arthur Ruiz • Scott Menville as Tyler • Michelle Lee as Michelle Kim • Rachel York as Marla Kinkirk • Cleo King as Unemployment office worker • Amy Sloan as Kari Syles • Bill Nye as Bill Waldie • Lauren Velez as Claudia Gomez • Deirdre Lovejoy as Daria Samson • Erica Gimpel as Principal Riva Bell • Tom Amandes as Lawrence Dryden • Robin Weigert as Elaine Tillman • George Newbern as Brendan McCrary • Jason Beghe as Reid Sarasin • Tito Ortiz as Tino Alva • Bruce McGill as Austin • Michael DeLorenzo as Nacio Duque • William Sadler as J. Everett Tuttle • Jama Williamson as Jane Aliano • Geoff Pierson as CEO Aaron Helm • Erin Cottrell as Caroline Williams • Lisa Vidal as Jessica Malloy • Jeremy Sisto as AUSA Alvin Brickle • Catherine Dent as Naomi Vaughn

Episodes