Kevan Lannister

Ser Kevan Lannister is a character in Game of Thrones. He is played by Ian Gelder and will debut in the first season.

Kevan is the younger brother of Lord Tywin Lannister and the father of Lancel Lannister, the squire to King Robert Baratheon. He is a noted knight who serves his elder brother loyally as an advisor.

In the books
In the Song of Ice and Fire novels, Ser Kevan is a solid, reliable and serious man, apparently happy living in his elder brother's shadow. He is loyal to his brother, loves his wife and children and is proud of his family and heritage. He is married to the Lady Dorna of House Swyft. As well as Lancel he has two younger sons, Willem and Martyn, and a young daughter, Janei.