Yes but they're all jobs they did years and years ago but then, at a very young age they settled into a soap role and never left it.
I don't see anything odd about it. It's a great gig. Maybe they know their limitations as actors, how precarious the profession is, and realise that nothing else will give them (a) the audience they have (b) the 3/4 days a week tv profile and (c) the great paycheck. They're all character actors doing something they love, where else would they get the exposure they have and the character growth/development and key storylines over the years? Good sense rather than lack of ambition imo.