High Pressure

Ambitious promoter who believes success requires risk, yet is superstitious and emotionally driven. He doubles down on the artificial rubber scheme and grapples with responsibility as consequences mount, even as he plots his next venture.

Long-suffering girlfriend who grows wary of Gar's obsession and ultimately steps away, only to be drawn back when he accepts responsibility. She represents pragmatism and a desire for stability in a volatile scheme.

Gar's loyal friend who champions the plan and keeps momentum alive with his own schemes. He embodies camaraderie but also the opportunistic streak that fuels the venture's rapid escalation.

Gar's crony installed as president to push the venture forward, a schemer who helps craft the corporate façade and revels in potential payoff, illustrating the cutthroat side of business alliances.

Secretary recruited to the operation, representing how quickly staff are drawn into high-pressure stock promotions. Her role highlights the personal stakes involved in the scheme.

Inventor of the artificial rubber process who proves to be a deranged crackpot, a turning point that exposes the fragility of grand schemes built on untested science.

Rival rubber magnate who tries to derail Gar's venture by offering to buy out the shares, embodying the established industry's efforts to curb reckless experimentation.