Angus MacGyver had an arch-nemesis named Murdoc. He was a deranged assassin and master of disguise who would appear to die at the end of an episode, but his body would never be found. Then he would later come back during subsequent episodes to attempt to kill Mac. The funny thing about Murdoc was that every time that he was about to meet his untimely end, he would scream out something like MacGyver or “I’ll get you MacGyver”. The actor would stretch out the words as he gets stuck in a building that is about to be demolished or he falls into a deep pool of boiling water.
Murdoc appeared to have died so many times, but somehow managed to survive and escape. The character’s greatest appearance was towards the end of the series when he came back the final time after he got complete reconstructive surgery to fix his burned face. Mac is haunted by nightmares of his old nemesis. Towards the end of the episode, Murdoc in a jeep attempts to run over his old enemy, but MacGyver manages to move out of the way. The jeep with Murdoc in it goes over the cliff as he screams out MacGyverrrrr and then it explodes when it hits the ground. Later Mac again finds out a body was never recovered and then he receives a call that appears to be silent until he hears Murdoc’s evil laughter as the episode ends.
Here is a picture of Murdoc