The relationships between Shane Walsh (Jon Bernthal, left), Rick Grimes (Andrew Lincoln), and Rick's wife Lori (Sarah Wayne Callies) form the main, non-walker tension in the first two seasons. Believing his best friend and police partner to be dead, Shane takes Lori and son Carl (Chandler Briggs) under his protection. But things between Shane and Lori quickly turn romantic — until Rick unexpectedly reunites with his family. Rick assumes his rightful position as husband and father, ultimately taking control of Shane's group of survivors — including Daryl Dixon (Norman Reedus), Andrea (Laurie Holden), T-Dog (IronE Singleton), Glenn Rhee (Steve Yuen), Carol Peletier (Melissa McBride), and Carol's daughter Sophia (Madison Lintz).