[3] Robbins' early career included work as an assistant to Edward Trumbull on his NBC building murals, and creating promotional materials for RKO Pictures.

[8] It was later revealed that Robbins had simply used the name created by former DC editor Whitney Ellsworth for the Batman syndicated comic strip.

[10][11] Working with editor Julius Schwartz and artists Neal Adams and Irv Novick, he would revitalize the character with a series of noteworthy stories reestablishing Batman's dark, brooding nature.

There he launched the Invaders series with writer Roy Thomas in 1975[19] and co-created the characters Union Jack,[20] Spitfire,[21] and the Kid Commandos.

[22] Other Marvel work included Captain America[23] and Ghost Rider as well as the licensed characters Human Fly and Man from Atlantis.

[7] Robbins moved to San Miguel de Allende, Mexico, and spent his final years focusing on painting.