Thanos the Mad Titan.

In the Marvel Comics universe, Thanos, the Mad Titan, does indeed confront his son Thane in a climactic scene. This confrontation is often depicted as part of the narrative where Thanos seeks to eliminate potential threats to his rule, including his own son. Thane, born to an unknown Inhuman woman, possesses godlike powers but struggles with instability and control, requiring a containment suit to manage his abilities.

In one of the pivotal moments, Thanos faces Thane after the latter has been empowered by the Phoenix Force. Despite Thane's enhanced power, he still fears his father and is manipulated by Death, Thanos' daughter, who suggests that Thane should finally eliminate Thanos. However, Thanos warns his son not to trust Death, a warning that Thane ignores. The scene culminates in a confrontation where Thanos and Thane clash, with Thanos ultimately defeating his son[16].

This scene is often portrayed as a critical moment in Thane's character arc, highlighting the complex relationship between father and son and the broader themes of power, fear, and legacy within the Marvel Comics universe.