When his wife Trixie died Lou dedicated himself more to his family. He also has a recurring rivalry with Conan McNulty, with Conan often lying to him and cheating.

His bowling rival was Billy 'Strike' Maxwell (seen in 'King Ten Pin'), however Lou later regains his honor by beating him after its revealed that Maxwell was cheating the entire time. Besides his rivalry with Mim, he's had several other rivals. He shares a rivalry with his cousin Miriam.

He loves his grandchildren deeply and always enjoys spending time with Tommy. Whenever Lou appears, his usual routine is to fall asleep in the middle of telling the kids a story. In these stories, the number 15 is prevalent in various ways.

He is commonly thought of as having a wild imagination from the many stories he tells of his earlier years. 'And I needed to walk just about 15 miles there.' Louis Kalhern 'Grandpa' 'Lou' Pickles (Born November 8, 1915) is the father of Drew and Stu, and also the paternal grandfather of Tommy, Dil and Angelica on Rugrats and All Grown Up! The elder patriarch of the Pickles family, young at heart, he likes to be adventurous.

Angelica pickles quotes