Overview
- Dane publicly disclosed his amyotrophic lateral sclerosis diagnosis in 2025.
- He appeared in 145 episodes of the ABC medical drama, according to IMDb.
- Introduced in Season 2 as a charismatic foil, Mark Sloan developed into a figure critics now describe as an emotional anchor.
- His screen partnership with Lexie Grey grew into a fan-favorite thread that influenced the show's long-term storytelling.
- In later years he also appeared on HBO's Euphoria, reflecting a career that bridged broadcast and premium television.