Robert Steven "Bobby" Singer (1950-2012) was a hunter, an old friend of John Winchester, and over time evolved into a father-figure for John's sons Sam and Dean. He was also one of the longest lasting recurring characters, appearing in every season so far.
Bobby is a hunter like the Winchesters, though he seems to stay fairly stationary. He wears a lot of flannel and is almost always seen in a trucker's hat. He runs an auto salvage yard as his day job, and is a go-to guy for supernatural research.
He seems to have amassed quite a bit of knowledge over the years (being the first to deduce on his own that Meg was in fact possessed), plus his house is full of bookcases and stacks of books about the supernatural world and the things hunters go after. He and John Winchester were old friends, though they had a falling out prior to the onset of the series. After John's death, Bobby becomes like a father to Sam and Dean.
Powers and Stats
Tier: 10-B, 9-C with firearms | 9-B
Name: Robert Seven "Bobby" Singer
Age: 62 at Death
Classification: Human, Hunter | Ghost
Powers and Abilities: Human Level Physical Characteristics, Skilled Hand-to-Hand Combatant, Expert Marksman, Indomitable Will (Overpowered a Demonic Possessions), Magic User (Mostly Banishing, Summoning, Tracking and Binding Spells) | Superhuman Strength, Immortality (Type 1), Invisibility, Intangibility, Telekinesis, Teleportation, Thermokinesis, Possession
Attack Potency: Human level physically, Street level with firearms | Wall level
Speed: Normal Human
Lifting Strength: Class H | Class 1
Striking Strength: Human Class | Wall Class
Durability: Human level | Wall level
Stamina: Above Average Human
Range: Standard Melee Range, Dozens of Meters with Firearms
Standard Equipment: Various Melee Weapons and Firearms, Demon-Killing Knife
Intelligence: Immensely High. With decades of hunting experience, he has amassed an immense wealth of knowledge in the Supernatural and the Occult, and is renowned and respected among hunters. Proficient Magic User, and fluent in many languages such as Japanese, Latin and various dead languages. Sam and Dean Winchester, both geniueses in their own right, often turn to him for assistance. Outsmarted "Souless" Sam, whose mind ran on pure logic.
Weaknesses: Any Normal Human Weaknesses, an Alcoholic, Old Age.
Key: Human | Ghost