MAX is a robot from the Thunderbirds Are Go! television series. Created by Brains, its name is an acronym for "Mechanical Assistant, E(x)perimental". MAX lives on Tracy Island and is used for chores and labour, but is considered a member of the family, especially to Brains.
MAX is an artificial intelligence, capable of replicating emotion. He is very empathetic, and he always looks out for the residents of Tracy Island. In Breakdown, he saved a slice of birthday cake for Virgil when the rest of the family couldn't wait for his return to eat it, and he helped Grandma cook a good apple pie in Runaway. However, MAX's sensitivity makes him rather cowardly, and whenever he is scared, he shakes rapidly.
MAX has adaptable all-terrain mobility limbs, a communications array, an optical and thermal scanner, and an autonomous power and control module. MAX resembles a spider, and his "abdomen" holds numerous gadgets and gizmos within to help around the Tracy villa, like assisting Brains with his experiments, helping Grandma cook, or even making a drink. MAX is also used as a test subject for Brains' experiments
MAX cannot talk, and only makes strange beeping noises that don't really mean anything. However, he is capable of listening to and understanding commands and requests.
MAX is rarely used in rescue missions. Sometimes he would like to go but cannot for whatever reason, while other times he is too scared.
His very first rescue mission was in Recharge, where he was upgraded to survive temperatures below -150°C. Brains created a special head visor that allowed him to talk to MAX and see whatever he sees in the Arctic Circle. Although his body was destroyed, his memory hard-drive survived, allowing him to be rebuilt with all of his knowledge, memories and personality intact.