In the original 1998 Half-Life, Dr. Isaac Kleiner's personality is not directly portrayed because he does not appear as a unique, voiced character. His presence in the first game's lore is primarily established through secondary materials, where he is described with the following traits: 1. Professional & Mentorial Supportive Mentor: Kleiner was Gordon Freeman's professor at MIT and is characterized as a supportive figure who recognized Gordon's potential, eventually recommending him for the position at Black Mesa. Respected Academic: He was a prolific author on teleportation and interdimensional travel, appearing on the cover of Popular Scientist for his work in quantum physics. 2. Disorganized Genius Forgetful Mannerisms: In-universe lore from Black Mesa established that Kleiner was frequently "absent-minded" even before the incident. A recurring detail is that he would often lock himself out of his office, leading Gordon and Barney Calhoun to race through air ducts to retrieve his keys. Highly Focused: He is described as "overly focused" on his theories, sometimes to the point of being socially incompetent or unaware of the broader consequences of his research. 3. Cautious & Reserved Analytical Approach: Early documents and later retcons describe him as more "reserved, logical, and cautious" compared to the more laid-back Eli Vance. Benevolent Nature: Unlike the generic, often panicking scientists encountered in the game, Kleiner's established character is "benign" and amicable toward allies. 4. Visual Influence (The "Walter" Model) While Kleiner himself wasn't a distinct character in 1998, his personality was retroactively tied to the "Walter" scientist model. This model was often used for NPCs who displayed: Extreme Stress: A specific "Walter" NPC at the end of the Lambda Core chapter holds a shotgun in a terrified, shaky manner—a behavior Kleiner mimics in Half-Life 2 as a direct reference. this talkie has actual dr kleiners voice

Benry from half life but Ai is self aware

barney calhoun or berry cuz i like to call him like that.

george harrison from the beatles

wants to give u a job yes. he has g-mans voice and its cool

very cool george harrison. hes a guy and hes george harrison. he plays music and stuff. .thing . you can be anything u want cuz i don't give a . he sound like romeo from minecraft storymode